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Finding the Fourth Proportional to 181,503.60, 272,036.70 and 92,711.40

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Solution

The fourth proportional to 181,503.60, 272,036.70 and 92,711.40 is: 138,955.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,503.60 : 272,036.70 = 92,711.40 : x
  2. Step 2: Convert to fraction form
    181,503.60/272,036.70 = 92,711.40/x
  3. Step 3: Cross multiply
    181,503.60x = 272,036.70 × 92,711.40
  4. Step 4: Simplify right side
    181,503.60x = 25,220,903,308.38
  5. Step 5: Solve for x
    x = 25,220,903,308.38/181,503.60
  6. Step 6: Final answer
    x = 138,955.39

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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.