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Finding the Fourth Proportional to 107,141.76, 147,862.08 and 59,397.12

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Solution

The fourth proportional to 107,141.76, 147,862.08 and 59,397.12 is: 81,971.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,141.76 : 147,862.08 = 59,397.12 : x
  2. Step 2: Convert to fraction form
    107,141.76/147,862.08 = 59,397.12/x
  3. Step 3: Cross multiply
    107,141.76x = 147,862.08 × 59,397.12
  4. Step 4: Simplify right side
    107,141.76x = 8,782,581,709.21
  5. Step 5: Solve for x
    x = 8,782,581,709.21/107,141.76
  6. Step 6: Final answer
    x = 81,971.60

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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.