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Finding the Fourth Proportional to 107,520.90, 148,380.69 and 59,124.90

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Solution

The fourth proportional to 107,520.90, 148,380.69 and 59,124.90 is: 81,593.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,520.90 : 148,380.69 = 59,124.90 : x
  2. Step 2: Convert to fraction form
    107,520.90/148,380.69 = 59,124.90/x
  3. Step 3: Cross multiply
    107,520.90x = 148,380.69 × 59,124.90
  4. Step 4: Simplify right side
    107,520.90x = 8,772,993,458.18
  5. Step 5: Solve for x
    x = 8,772,993,458.18/107,520.90
  6. Step 6: Final answer
    x = 81,593.38

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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.