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Finding the Fourth Proportional to 125,280.67, 187,831.73 and 58,684.47

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Solution

The fourth proportional to 125,280.67, 187,831.73 and 58,684.47 is: 87,984.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,280.67 : 187,831.73 = 58,684.47 : x
  2. Step 2: Convert to fraction form
    125,280.67/187,831.73 = 58,684.47/x
  3. Step 3: Cross multiply
    125,280.67x = 187,831.73 × 58,684.47
  4. Step 4: Simplify right side
    125,280.67x = 11,022,805,993.81
  5. Step 5: Solve for x
    x = 11,022,805,993.81/125,280.67
  6. Step 6: Final answer
    x = 87,984.89

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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.