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Finding the Fourth Proportional to 295,045.65, 442,567.80 and 126,456.66

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Solution

The fourth proportional to 295,045.65, 442,567.80 and 126,456.66 is: 189,684.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,045.65 : 442,567.80 = 126,456.66 : x
  2. Step 2: Convert to fraction form
    295,045.65/442,567.80 = 126,456.66/x
  3. Step 3: Cross multiply
    295,045.65x = 442,567.80 × 126,456.66
  4. Step 4: Simplify right side
    295,045.65x = 55,965,645,811.55
  5. Step 5: Solve for x
    x = 55,965,645,811.55/295,045.65
  6. Step 6: Final answer
    x = 189,684.70

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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.