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Finding the Fourth Proportional to 125,005.86, 187,320.87 and 50,051.70

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Solution

The fourth proportional to 125,005.86, 187,320.87 and 50,051.70 is: 75,002.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,005.86 : 187,320.87 = 50,051.70 : x
  2. Step 2: Convert to fraction form
    125,005.86/187,320.87 = 50,051.70/x
  3. Step 3: Cross multiply
    125,005.86x = 187,320.87 × 50,051.70
  4. Step 4: Simplify right side
    125,005.86x = 9,375,727,988.98
  5. Step 5: Solve for x
    x = 9,375,727,988.98/125,005.86
  6. Step 6: Final answer
    x = 75,002.31

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1.5x scale

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.