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Finding the Fourth Proportional to 445,714.10, 668,572.60 and 113,290.10

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Solution

The fourth proportional to 445,714.10, 668,572.60 and 113,290.10 is: 169,935.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,714.10 : 668,572.60 = 113,290.10 : x
  2. Step 2: Convert to fraction form
    445,714.10/668,572.60 = 113,290.10/x
  3. Step 3: Cross multiply
    445,714.10x = 668,572.60 × 113,290.10
  4. Step 4: Simplify right side
    445,714.10x = 75,742,656,711.26
  5. Step 5: Solve for x
    x = 75,742,656,711.26/445,714.10
  6. Step 6: Final answer
    x = 169,935.52

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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.