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Finding the Fourth Proportional to 117,316.60, 175,931.70 and 38,433.40

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Solution

The fourth proportional to 117,316.60, 175,931.70 and 38,433.40 is: 57,635.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,316.60 : 175,931.70 = 38,433.40 : x
  2. Step 2: Convert to fraction form
    117,316.60/175,931.70 = 38,433.40/x
  3. Step 3: Cross multiply
    117,316.60x = 175,931.70 × 38,433.40
  4. Step 4: Simplify right side
    117,316.60x = 6,761,653,398.78
  5. Step 5: Solve for x
    x = 6,761,653,398.78/117,316.60
  6. Step 6: Final answer
    x = 57,635.95

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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.