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Finding the Fourth Proportional to 100,995.53, 141,656.18 and 100,995.53

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Solution

The fourth proportional to 100,995.53, 141,656.18 and 100,995.53 is: 141,656.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,995.53 : 141,656.18 = 100,995.53 : x
  2. Step 2: Convert to fraction form
    100,995.53/141,656.18 = 100,995.53/x
  3. Step 3: Cross multiply
    100,995.53x = 141,656.18 × 100,995.53
  4. Step 4: Simplify right side
    100,995.53x = 14,306,639,763.62
  5. Step 5: Solve for x
    x = 14,306,639,763.62/100,995.53
  6. Step 6: Final answer
    x = 141,656.18

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.