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Finding the Fourth Proportional to 73,231.60, 109,852.80 and 26,478.40

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Solution

The fourth proportional to 73,231.60, 109,852.80 and 26,478.40 is: 39,719.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,231.60 : 109,852.80 = 26,478.40 : x
  2. Step 2: Convert to fraction form
    73,231.60/109,852.80 = 26,478.40/x
  3. Step 3: Cross multiply
    73,231.60x = 109,852.80 × 26,478.40
  4. Step 4: Simplify right side
    73,231.60x = 2,908,726,379.52
  5. Step 5: Solve for x
    x = 2,908,726,379.52/73,231.60
  6. Step 6: Final answer
    x = 39,719.55

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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.