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Finding the Fourth Proportional to 86,887.69, 119,891.14 and 48,648.90

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Solution

The fourth proportional to 86,887.69, 119,891.14 and 48,648.90 is: 67,127.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,887.69 : 119,891.14 = 48,648.90 : x
  2. Step 2: Convert to fraction form
    86,887.69/119,891.14 = 48,648.90/x
  3. Step 3: Cross multiply
    86,887.69x = 119,891.14 × 48,648.90
  4. Step 4: Simplify right side
    86,887.69x = 5,832,572,408.72
  5. Step 5: Solve for x
    x = 5,832,572,408.72/86,887.69
  6. Step 6: Final answer
    x = 67,127.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.