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Finding the Fourth Proportional to 124,693.77, 187,040.70 and 31,199.52

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Solution

The fourth proportional to 124,693.77, 187,040.70 and 31,199.52 is: 46,799.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,693.77 : 187,040.70 = 31,199.52 : x
  2. Step 2: Convert to fraction form
    124,693.77/187,040.70 = 31,199.52/x
  3. Step 3: Cross multiply
    124,693.77x = 187,040.70 × 31,199.52
  4. Step 4: Simplify right side
    124,693.77x = 5,835,580,060.46
  5. Step 5: Solve for x
    x = 5,835,580,060.46/124,693.77
  6. Step 6: Final answer
    x = 46,799.29

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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.