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Finding the Fourth Proportional to 98,950.60, 148,425.90 and 28,832.20

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Solution

The fourth proportional to 98,950.60, 148,425.90 and 28,832.20 is: 43,248.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,950.60 : 148,425.90 = 28,832.20 : x
  2. Step 2: Convert to fraction form
    98,950.60/148,425.90 = 28,832.20/x
  3. Step 3: Cross multiply
    98,950.60x = 148,425.90 × 28,832.20
  4. Step 4: Simplify right side
    98,950.60x = 4,279,445,233.98
  5. Step 5: Solve for x
    x = 4,279,445,233.98/98,950.60
  6. Step 6: Final answer
    x = 43,248.30

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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.