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Finding the Fourth Proportional to 136,765.71, 188,823.35 and 93,817.15

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Solution

The fourth proportional to 136,765.71, 188,823.35 and 93,817.15 is: 129,527.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,765.71 : 188,823.35 = 93,817.15 : x
  2. Step 2: Convert to fraction form
    136,765.71/188,823.35 = 93,817.15/x
  3. Step 3: Cross multiply
    136,765.71x = 188,823.35 × 93,817.15
  4. Step 4: Simplify right side
    136,765.71x = 17,714,868,312.94
  5. Step 5: Solve for x
    x = 17,714,868,312.94/136,765.71
  6. Step 6: Final answer
    x = 129,527.12

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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.