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Finding the Fourth Proportional to 577,767.67, 866,476.54 and 156,988.87

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Solution

The fourth proportional to 577,767.67, 866,476.54 and 156,988.87 is: 235,435.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,767.67 : 866,476.54 = 156,988.87 : x
  2. Step 2: Convert to fraction form
    577,767.67/866,476.54 = 156,988.87/x
  3. Step 3: Cross multiply
    577,767.67x = 866,476.54 × 156,988.87
  4. Step 4: Simplify right side
    577,767.67x = 136,027,172,896.11
  5. Step 5: Solve for x
    x = 136,027,172,896.11/577,767.67
  6. Step 6: Final answer
    x = 235,435.76

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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.