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Finding the Fourth Proportional to 124,765.75, 187,128.54 and 34,810.79

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Solution

The fourth proportional to 124,765.75, 187,128.54 and 34,810.79 is: 52,210.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,765.75 : 187,128.54 = 34,810.79 : x
  2. Step 2: Convert to fraction form
    124,765.75/187,128.54 = 34,810.79/x
  3. Step 3: Cross multiply
    124,765.75x = 187,128.54 × 34,810.79
  4. Step 4: Simplify right side
    124,765.75x = 6,514,092,776.77
  5. Step 5: Solve for x
    x = 6,514,092,776.77/124,765.75
  6. Step 6: Final answer
    x = 52,210.59

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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.