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Finding the Fourth Proportional to 225,526.80, 338,254.92 and 99,139.08

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Solution

The fourth proportional to 225,526.80, 338,254.92 and 99,139.08 is: 148,693.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,526.80 : 338,254.92 = 99,139.08 : x
  2. Step 2: Convert to fraction form
    225,526.80/338,254.92 = 99,139.08/x
  3. Step 3: Cross multiply
    225,526.80x = 338,254.92 × 99,139.08
  4. Step 4: Simplify right side
    225,526.80x = 33,534,281,574.27
  5. Step 5: Solve for x
    x = 33,534,281,574.27/225,526.80
  6. Step 6: Final answer
    x = 148,693.11

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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.