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Finding the Fourth Proportional to 74,677.60, 112,036.20 and 32,539.60

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Solution

The fourth proportional to 74,677.60, 112,036.20 and 32,539.60 is: 48,818.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,677.60 : 112,036.20 = 32,539.60 : x
  2. Step 2: Convert to fraction form
    74,677.60/112,036.20 = 32,539.60/x
  3. Step 3: Cross multiply
    74,677.60x = 112,036.20 × 32,539.60
  4. Step 4: Simplify right side
    74,677.60x = 3,645,613,133.52
  5. Step 5: Solve for x
    x = 3,645,613,133.52/74,677.60
  6. Step 6: Final answer
    x = 48,818.03

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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.