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Finding the Fourth Proportional to 125,637.60, 188,456.40 and 41,397.60

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Solution

The fourth proportional to 125,637.60, 188,456.40 and 41,397.60 is: 62,096.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,637.60 : 188,456.40 = 41,397.60 : x
  2. Step 2: Convert to fraction form
    125,637.60/188,456.40 = 41,397.60/x
  3. Step 3: Cross multiply
    125,637.60x = 188,456.40 × 41,397.60
  4. Step 4: Simplify right side
    125,637.60x = 7,801,642,664.64
  5. Step 5: Solve for x
    x = 7,801,642,664.64/125,637.60
  6. Step 6: Final answer
    x = 62,096.40

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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.