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Finding the Fourth Proportional to 114,987.92, 158,682.14 and 63,999.90

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Solution

The fourth proportional to 114,987.92, 158,682.14 and 63,999.90 is: 88,319.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,987.92 : 158,682.14 = 63,999.90 : x
  2. Step 2: Convert to fraction form
    114,987.92/158,682.14 = 63,999.90/x
  3. Step 3: Cross multiply
    114,987.92x = 158,682.14 × 63,999.90
  4. Step 4: Simplify right side
    114,987.92x = 10,155,641,091.79
  5. Step 5: Solve for x
    x = 10,155,641,091.79/114,987.92
  6. Step 6: Final answer
    x = 88,319.20

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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.