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Finding the Fourth Proportional to 295,048.90, 442,572.68 and 126,459.91

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Solution

The fourth proportional to 295,048.90, 442,572.68 and 126,459.91 is: 189,689.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,048.90 : 442,572.68 = 126,459.91 : x
  2. Step 2: Convert to fraction form
    295,048.90/442,572.68 = 126,459.91/x
  3. Step 3: Cross multiply
    295,048.90x = 442,572.68 × 126,459.91
  4. Step 4: Simplify right side
    295,048.90x = 55,967,700,648.96
  5. Step 5: Solve for x
    x = 55,967,700,648.96/295,048.90
  6. Step 6: Final answer
    x = 189,689.58

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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.