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Finding the Fourth Proportional to 577,688.16, 866,550 and 156,972.96

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Solution

The fourth proportional to 577,688.16, 866,550 and 156,972.96 is: 235,464.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,688.16 : 866,550 = 156,972.96 : x
  2. Step 2: Convert to fraction form
    577,688.16/866,550 = 156,972.96/x
  3. Step 3: Cross multiply
    577,688.16x = 866,550 × 156,972.96
  4. Step 4: Simplify right side
    577,688.16x = 136,024,918,488
  5. Step 5: Solve for x
    x = 136,024,918,488/577,688.16
  6. Step 6: Final answer
    x = 235,464.27

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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.