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Finding the Fourth Proportional to 107,311.81, 148,092.03 and 58,918.20

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Solution

The fourth proportional to 107,311.81, 148,092.03 and 58,918.20 is: 81,308.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,311.81 : 148,092.03 = 58,918.20 : x
  2. Step 2: Convert to fraction form
    107,311.81/148,092.03 = 58,918.20/x
  3. Step 3: Cross multiply
    107,311.81x = 148,092.03 × 58,918.20
  4. Step 4: Simplify right side
    107,311.81x = 8,725,315,841.95
  5. Step 5: Solve for x
    x = 8,725,315,841.95/107,311.81
  6. Step 6: Final answer
    x = 81,308.07

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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.