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Finding the Fourth Proportional to 99,279.60, 148,919.40 and 59,816.40

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Solution

The fourth proportional to 99,279.60, 148,919.40 and 59,816.40 is: 89,724.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,279.60 : 148,919.40 = 59,816.40 : x
  2. Step 2: Convert to fraction form
    99,279.60/148,919.40 = 59,816.40/x
  3. Step 3: Cross multiply
    99,279.60x = 148,919.40 × 59,816.40
  4. Step 4: Simplify right side
    99,279.60x = 8,907,822,398.16
  5. Step 5: Solve for x
    x = 8,907,822,398.16/99,279.60
  6. Step 6: Final answer
    x = 89,724.60

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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.