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Finding the Fourth Proportional to 91,291.61, 136,923.57 and 32,113.41

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Solution

The fourth proportional to 91,291.61, 136,923.57 and 32,113.41 is: 48,165.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,291.61 : 136,923.57 = 32,113.41 : x
  2. Step 2: Convert to fraction form
    91,291.61/136,923.57 = 32,113.41/x
  3. Step 3: Cross multiply
    91,291.61x = 136,923.57 × 32,113.41
  4. Step 4: Simplify right side
    91,291.61x = 4,397,082,742.07
  5. Step 5: Solve for x
    x = 4,397,082,742.07/91,291.61
  6. Step 6: Final answer
    x = 48,165.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.