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Finding the Fourth Proportional to 86,116.41, 118,841.28 and 47,354.91

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Solution

The fourth proportional to 86,116.41, 118,841.28 and 47,354.91 is: 65,350.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,116.41 : 118,841.28 = 47,354.91 : x
  2. Step 2: Convert to fraction form
    86,116.41/118,841.28 = 47,354.91/x
  3. Step 3: Cross multiply
    86,116.41x = 118,841.28 × 47,354.91
  4. Step 4: Simplify right side
    86,116.41x = 5,627,718,118.68
  5. Step 5: Solve for x
    x = 5,627,718,118.68/86,116.41
  6. Step 6: Final answer
    x = 65,350.12

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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.