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Finding the Fourth Proportional to 107,145.64, 147,847.32 and 59,398.54

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Solution

The fourth proportional to 107,145.64, 147,847.32 and 59,398.54 is: 81,962.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,145.64 : 147,847.32 = 59,398.54 : x
  2. Step 2: Convert to fraction form
    107,145.64/147,847.32 = 59,398.54/x
  3. Step 3: Cross multiply
    107,145.64x = 147,847.32 × 59,398.54
  4. Step 4: Simplify right side
    107,145.64x = 8,781,914,950.91
  5. Step 5: Solve for x
    x = 8,781,914,950.91/107,145.64
  6. Step 6: Final answer
    x = 81,962.41

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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.