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Finding the Fourth Proportional to 56,066,430.80, 83,910,689.40 and 56,066,430.80

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Solution

The fourth proportional to 56,066,430.80, 83,910,689.40 and 56,066,430.80 is: 83,910,689.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,066,430.80 : 83,910,689.40 = 56,066,430.80 : x
  2. Step 2: Convert to fraction form
    56,066,430.80/83,910,689.40 = 56,066,430.80/x
  3. Step 3: Cross multiply
    56,066,430.80x = 83,910,689.40 × 56,066,430.80
  4. Step 4: Simplify right side
    56,066,430.80x = 4,704,572,860,625,394
  5. Step 5: Solve for x
    x = 4,704,572,860,625,394/56,066,430.80
  6. Step 6: Final answer
    x = 83,910,689.40

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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.