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Finding the Fourth Proportional to 228,862.99, 315,849.54 and 126,898.57

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Solution

The fourth proportional to 228,862.99, 315,849.54 and 126,898.57 is: 175,130.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,862.99 : 315,849.54 = 126,898.57 : x
  2. Step 2: Convert to fraction form
    228,862.99/315,849.54 = 126,898.57/x
  3. Step 3: Cross multiply
    228,862.99x = 315,849.54 × 126,898.57
  4. Step 4: Simplify right side
    228,862.99x = 40,080,854,961.16
  5. Step 5: Solve for x
    x = 40,080,854,961.16/228,862.99
  6. Step 6: Final answer
    x = 175,130.35

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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.