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Finding the Fourth Proportional to 99,019.53, 136,596.11 and 65,023.09

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Solution

The fourth proportional to 99,019.53, 136,596.11 and 65,023.09 is: 89,698.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,019.53 : 136,596.11 = 65,023.09 : x
  2. Step 2: Convert to fraction form
    99,019.53/136,596.11 = 65,023.09/x
  3. Step 3: Cross multiply
    99,019.53x = 136,596.11 × 65,023.09
  4. Step 4: Simplify right side
    99,019.53x = 8,881,900,487.57
  5. Step 5: Solve for x
    x = 8,881,900,487.57/99,019.53
  6. Step 6: Final answer
    x = 89,698.47

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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.