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Finding the Fourth Proportional to 106,872.60, 147,486.54 and 59,129.34

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Solution

The fourth proportional to 106,872.60, 147,486.54 and 59,129.34 is: 81,599.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,872.60 : 147,486.54 = 59,129.34 : x
  2. Step 2: Convert to fraction form
    106,872.60/147,486.54 = 59,129.34/x
  3. Step 3: Cross multiply
    106,872.60x = 147,486.54 × 59,129.34
  4. Step 4: Simplify right side
    106,872.60x = 8,720,781,769.08
  5. Step 5: Solve for x
    x = 8,720,781,769.08/106,872.60
  6. Step 6: Final answer
    x = 81,599.79

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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.