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Finding the Fourth Proportional to 86,113.13, 118,836.72 and 48,387.38

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Solution

The fourth proportional to 86,113.13, 118,836.72 and 48,387.38 is: 66,774.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,113.13 : 118,836.72 = 48,387.38 : x
  2. Step 2: Convert to fraction form
    86,113.13/118,836.72 = 48,387.38/x
  3. Step 3: Cross multiply
    86,113.13x = 118,836.72 × 48,387.38
  4. Step 4: Simplify right side
    86,113.13x = 5,750,196,934.41
  5. Step 5: Solve for x
    x = 5,750,196,934.41/86,113.13
  6. Step 6: Final answer
    x = 66,774.92

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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.