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Finding the Fourth Proportional to 99,190.60, 148,785.90 and 36,848.20

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Solution

The fourth proportional to 99,190.60, 148,785.90 and 36,848.20 is: 55,272.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,190.60 : 148,785.90 = 36,848.20 : x
  2. Step 2: Convert to fraction form
    99,190.60/148,785.90 = 36,848.20/x
  3. Step 3: Cross multiply
    99,190.60x = 148,785.90 × 36,848.20
  4. Step 4: Simplify right side
    99,190.60x = 5,482,492,600.38
  5. Step 5: Solve for x
    x = 5,482,492,600.38/99,190.60
  6. Step 6: Final answer
    x = 55,272.30

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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.