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Finding the Fourth Proportional to 261,758.39, 392,681.32 and 93,375.79

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Solution

The fourth proportional to 261,758.39, 392,681.32 and 93,375.79 is: 140,079.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,758.39 : 392,681.32 = 93,375.79 : x
  2. Step 2: Convert to fraction form
    261,758.39/392,681.32 = 93,375.79/x
  3. Step 3: Cross multiply
    261,758.39x = 392,681.32 × 93,375.79
  4. Step 4: Simplify right side
    261,758.39x = 36,666,927,258.10
  5. Step 5: Solve for x
    x = 36,666,927,258.10/261,758.39
  6. Step 6: Final answer
    x = 140,079.28

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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.