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Finding the Fourth Proportional to 185,557.56, 278,386.56 and 132,316.80

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Solution

The fourth proportional to 185,557.56, 278,386.56 and 132,316.80 is: 198,511.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,557.56 : 278,386.56 = 132,316.80 : x
  2. Step 2: Convert to fraction form
    185,557.56/278,386.56 = 132,316.80/x
  3. Step 3: Cross multiply
    185,557.56x = 278,386.56 × 132,316.80
  4. Step 4: Simplify right side
    185,557.56x = 36,835,218,782.21
  5. Step 5: Solve for x
    x = 36,835,218,782.21/185,557.56
  6. Step 6: Final answer
    x = 198,511.01

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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.