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Finding the Fourth Proportional to 99,285.80, 148,935.90 and 59,757.80

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Solution

The fourth proportional to 99,285.80, 148,935.90 and 59,757.80 is: 89,641.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,285.80 : 148,935.90 = 59,757.80 : x
  2. Step 2: Convert to fraction form
    99,285.80/148,935.90 = 59,757.80/x
  3. Step 3: Cross multiply
    99,285.80x = 148,935.90 × 59,757.80
  4. Step 4: Simplify right side
    99,285.80x = 8,900,081,725.02
  5. Step 5: Solve for x
    x = 8,900,081,725.02/99,285.80
  6. Step 6: Final answer
    x = 89,641.03

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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.