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Finding the Fourth Proportional to 147,232.10, 220,848.15 and 80,876.90

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Solution

The fourth proportional to 147,232.10, 220,848.15 and 80,876.90 is: 121,315.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,232.10 : 220,848.15 = 80,876.90 : x
  2. Step 2: Convert to fraction form
    147,232.10/220,848.15 = 80,876.90/x
  3. Step 3: Cross multiply
    147,232.10x = 220,848.15 × 80,876.90
  4. Step 4: Simplify right side
    147,232.10x = 17,861,513,742.74
  5. Step 5: Solve for x
    x = 17,861,513,742.74/147,232.10
  6. Step 6: Final answer
    x = 121,315.35

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1.5x scale

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.