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Finding the Fourth Proportional to 525,814.03, 788,641.08 and 146,694.85

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Solution

The fourth proportional to 525,814.03, 788,641.08 and 146,694.85 is: 220,019.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,814.03 : 788,641.08 = 146,694.85 : x
  2. Step 2: Convert to fraction form
    525,814.03/788,641.08 = 146,694.85/x
  3. Step 3: Cross multiply
    525,814.03x = 788,641.08 × 146,694.85
  4. Step 4: Simplify right side
    525,814.03x = 115,689,583,650.47
  5. Step 5: Solve for x
    x = 115,689,583,650.47/525,814.03
  6. Step 6: Final answer
    x = 220,019.96

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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.