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Finding the Fourth Proportional to 124,758.93, 187,212.51 and 45,928.52

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Solution

The fourth proportional to 124,758.93, 187,212.51 and 45,928.52 is: 68,920.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,758.93 : 187,212.51 = 45,928.52 : x
  2. Step 2: Convert to fraction form
    124,758.93/187,212.51 = 45,928.52/x
  3. Step 3: Cross multiply
    124,758.93x = 187,212.51 × 45,928.52
  4. Step 4: Simplify right side
    124,758.93x = 8,598,393,509.79
  5. Step 5: Solve for x
    x = 8,598,393,509.79/124,758.93
  6. Step 6: Final answer
    x = 68,920.06

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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.