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Finding the Fourth Proportional to 124,987.86, 187,293.87 and 50,033.70

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Solution

The fourth proportional to 124,987.86, 187,293.87 and 50,033.70 is: 74,975.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,987.86 : 187,293.87 = 50,033.70 : x
  2. Step 2: Convert to fraction form
    124,987.86/187,293.87 = 50,033.70/x
  3. Step 3: Cross multiply
    124,987.86x = 187,293.87 × 50,033.70
  4. Step 4: Simplify right side
    124,987.86x = 9,371,005,303.42
  5. Step 5: Solve for x
    x = 9,371,005,303.42/124,987.86
  6. Step 6: Final answer
    x = 74,975.32

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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.