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Finding the Fourth Proportional to 99,065.80, 148,512.30 and 59,638.60

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Solution

The fourth proportional to 99,065.80, 148,512.30 and 59,638.60 is: 89,405.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,065.80 : 148,512.30 = 59,638.60 : x
  2. Step 2: Convert to fraction form
    99,065.80/148,512.30 = 59,638.60/x
  3. Step 3: Cross multiply
    99,065.80x = 148,512.30 × 59,638.60
  4. Step 4: Simplify right side
    99,065.80x = 8,857,065,654.78
  5. Step 5: Solve for x
    x = 8,857,065,654.78/99,065.80
  6. Step 6: Final answer
    x = 89,405.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.