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Finding the Fourth Proportional to 324,686.40, 487,032.84 and 88,033.56

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Solution

The fourth proportional to 324,686.40, 487,032.84 and 88,033.56 is: 132,051.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,686.40 : 487,032.84 = 88,033.56 : x
  2. Step 2: Convert to fraction form
    324,686.40/487,032.84 = 88,033.56/x
  3. Step 3: Cross multiply
    324,686.40x = 487,032.84 × 88,033.56
  4. Step 4: Simplify right side
    324,686.40x = 42,875,234,742.11
  5. Step 5: Solve for x
    x = 42,875,234,742.11/324,686.40
  6. Step 6: Final answer
    x = 132,051.22

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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.