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Finding the Fourth Proportional to 99,019.60, 148,644.60 and 59,621.20

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Solution

The fourth proportional to 99,019.60, 148,644.60 and 59,621.20 is: 89,501.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,019.60 : 148,644.60 = 59,621.20 : x
  2. Step 2: Convert to fraction form
    99,019.60/148,644.60 = 59,621.20/x
  3. Step 3: Cross multiply
    99,019.60x = 148,644.60 × 59,621.20
  4. Step 4: Simplify right side
    99,019.60x = 8,862,369,425.52
  5. Step 5: Solve for x
    x = 8,862,369,425.52/99,019.60
  6. Step 6: Final answer
    x = 89,501.16

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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.