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Finding the Fourth Proportional to 340,488.18, 469,869.12 and 189,585.18

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Solution

The fourth proportional to 340,488.18, 469,869.12 and 189,585.18 is: 261,625.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,488.18 : 469,869.12 = 189,585.18 : x
  2. Step 2: Convert to fraction form
    340,488.18/469,869.12 = 189,585.18/x
  3. Step 3: Cross multiply
    340,488.18x = 469,869.12 × 189,585.18
  4. Step 4: Simplify right side
    340,488.18x = 89,080,221,691.64
  5. Step 5: Solve for x
    x = 89,080,221,691.64/340,488.18
  6. Step 6: Final answer
    x = 261,625.00

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.