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Finding the Fourth Proportional to 119,602.71, 165,219.62 and 113,304.15

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Solution

The fourth proportional to 119,602.71, 165,219.62 and 113,304.15 is: 156,518.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,602.71 : 165,219.62 = 113,304.15 : x
  2. Step 2: Convert to fraction form
    119,602.71/165,219.62 = 113,304.15/x
  3. Step 3: Cross multiply
    119,602.71x = 165,219.62 × 113,304.15
  4. Step 4: Simplify right side
    119,602.71x = 18,720,068,040.90
  5. Step 5: Solve for x
    x = 18,720,068,040.90/119,602.71
  6. Step 6: Final answer
    x = 156,518.76

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1.5x scale

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.