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Finding the Fourth Proportional to 113,791.60, 170,687.40 and 42,714.10

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Solution

The fourth proportional to 113,791.60, 170,687.40 and 42,714.10 is: 64,071.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,791.60 : 170,687.40 = 42,714.10 : x
  2. Step 2: Convert to fraction form
    113,791.60/170,687.40 = 42,714.10/x
  3. Step 3: Cross multiply
    113,791.60x = 170,687.40 × 42,714.10
  4. Step 4: Simplify right side
    113,791.60x = 7,290,758,672.34
  5. Step 5: Solve for x
    x = 7,290,758,672.34/113,791.60
  6. Step 6: Final answer
    x = 64,071.15

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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.