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Finding the Fourth Proportional to 107,539, 148,396.80 and 59,790.60

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Solution

The fourth proportional to 107,539, 148,396.80 and 59,790.60 is: 82,507.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,539 : 148,396.80 = 59,790.60 : x
  2. Step 2: Convert to fraction form
    107,539/148,396.80 = 59,790.60/x
  3. Step 3: Cross multiply
    107,539x = 148,396.80 × 59,790.60
  4. Step 4: Simplify right side
    107,539x = 8,872,733,710.08
  5. Step 5: Solve for x
    x = 8,872,733,710.08/107,539
  6. Step 6: Final answer
    x = 82,507.12

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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.