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Finding the Fourth Proportional to 97,888.65, 135,086.33 and 55,447.18

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Solution

The fourth proportional to 97,888.65, 135,086.33 and 55,447.18 is: 76,517.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,888.65 : 135,086.33 = 55,447.18 : x
  2. Step 2: Convert to fraction form
    97,888.65/135,086.33 = 55,447.18/x
  3. Step 3: Cross multiply
    97,888.65x = 135,086.33 × 55,447.18
  4. Step 4: Simplify right side
    97,888.65x = 7,490,156,615.81
  5. Step 5: Solve for x
    x = 7,490,156,615.81/97,888.65
  6. Step 6: Final answer
    x = 76,517.11

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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.