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Finding the Fourth Proportional to 207,551.52, 286,438.74 and 116,925.28

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Solution

The fourth proportional to 207,551.52, 286,438.74 and 116,925.28 is: 161,366.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,551.52 : 286,438.74 = 116,925.28 : x
  2. Step 2: Convert to fraction form
    207,551.52/286,438.74 = 116,925.28/x
  3. Step 3: Cross multiply
    207,551.52x = 286,438.74 × 116,925.28
  4. Step 4: Simplify right side
    207,551.52x = 33,491,929,877.35
  5. Step 5: Solve for x
    x = 33,491,929,877.35/207,551.52
  6. Step 6: Final answer
    x = 161,366.83

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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.