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Finding the Fourth Proportional to 99,291.60, 148,908.60 and 36,104.40

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Solution

The fourth proportional to 99,291.60, 148,908.60 and 36,104.40 is: 54,146.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,291.60 : 148,908.60 = 36,104.40 : x
  2. Step 2: Convert to fraction form
    99,291.60/148,908.60 = 36,104.40/x
  3. Step 3: Cross multiply
    99,291.60x = 148,908.60 × 36,104.40
  4. Step 4: Simplify right side
    99,291.60x = 5,376,255,657.84
  5. Step 5: Solve for x
    x = 5,376,255,657.84/99,291.60
  6. Step 6: Final answer
    x = 54,146.13

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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.