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Finding the Fourth Proportional to 267,688.80, 369,429.32 and 152,984.36

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Solution

The fourth proportional to 267,688.80, 369,429.32 and 152,984.36 is: 211,129.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,688.80 : 369,429.32 = 152,984.36 : x
  2. Step 2: Convert to fraction form
    267,688.80/369,429.32 = 152,984.36/x
  3. Step 3: Cross multiply
    267,688.80x = 369,429.32 × 152,984.36
  4. Step 4: Simplify right side
    267,688.80x = 56,516,909,391.47
  5. Step 5: Solve for x
    x = 56,516,909,391.47/267,688.80
  6. Step 6: Final answer
    x = 211,129.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.