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Finding the Fourth Proportional to 295,020.61, 407,192.91 and 187,569.65

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Solution

The fourth proportional to 295,020.61, 407,192.91 and 187,569.65 is: 258,887.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,020.61 : 407,192.91 = 187,569.65 : x
  2. Step 2: Convert to fraction form
    295,020.61/407,192.91 = 187,569.65/x
  3. Step 3: Cross multiply
    295,020.61x = 407,192.91 × 187,569.65
  4. Step 4: Simplify right side
    295,020.61x = 76,377,031,925.78
  5. Step 5: Solve for x
    x = 76,377,031,925.78/295,020.61
  6. Step 6: Final answer
    x = 258,887.11

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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.