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Finding the Fourth Proportional to 282,479.48, 423,719.91 and 69,248.33

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Solution

The fourth proportional to 282,479.48, 423,719.91 and 69,248.33 is: 103,872.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,479.48 : 423,719.91 = 69,248.33 : x
  2. Step 2: Convert to fraction form
    282,479.48/423,719.91 = 69,248.33/x
  3. Step 3: Cross multiply
    282,479.48x = 423,719.91 × 69,248.33
  4. Step 4: Simplify right side
    282,479.48x = 29,341,894,036.65
  5. Step 5: Solve for x
    x = 29,341,894,036.65/282,479.48
  6. Step 6: Final answer
    x = 103,872.66

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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.