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Finding the Fourth Proportional to 545,644,689.98, 818,455,217.67 and 152,161,017.39

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Solution

The fourth proportional to 545,644,689.98, 818,455,217.67 and 152,161,017.39 is: 228,238,230.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,644,689.98 : 818,455,217.67 = 152,161,017.39 : x
  2. Step 2: Convert to fraction form
    545,644,689.98/818,455,217.67 = 152,161,017.39/x
  3. Step 3: Cross multiply
    545,644,689.98x = 818,455,217.67 × 152,161,017.39
  4. Step 4: Simplify right side
    545,644,689.98x = 124,536,978,608,821,088
  5. Step 5: Solve for x
    x = 124,536,978,608,821,088/545,644,689.98
  6. Step 6: Final answer
    x = 228,238,230.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.