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Finding the Fourth Proportional to 265,606.80, 398,534.56 and 132,497.36

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Solution

The fourth proportional to 265,606.80, 398,534.56 and 132,497.36 is: 198,808.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,606.80 : 398,534.56 = 132,497.36 : x
  2. Step 2: Convert to fraction form
    265,606.80/398,534.56 = 132,497.36/x
  3. Step 3: Cross multiply
    265,606.80x = 398,534.56 × 132,497.36
  4. Step 4: Simplify right side
    265,606.80x = 52,804,777,068.76
  5. Step 5: Solve for x
    x = 52,804,777,068.76/265,606.80
  6. Step 6: Final answer
    x = 198,808.08

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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.