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Finding the Fourth Proportional to 141,359.56, 195,104.57 and 83,987.84

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Solution

The fourth proportional to 141,359.56, 195,104.57 and 83,987.84 is: 115,920.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,359.56 : 195,104.57 = 83,987.84 : x
  2. Step 2: Convert to fraction form
    141,359.56/195,104.57 = 83,987.84/x
  3. Step 3: Cross multiply
    141,359.56x = 195,104.57 × 83,987.84
  4. Step 4: Simplify right side
    141,359.56x = 16,386,411,476.25
  5. Step 5: Solve for x
    x = 16,386,411,476.25/141,359.56
  6. Step 6: Final answer
    x = 115,920.08

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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.