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Finding the Fourth Proportional to 111,527.40, 167,291.10 and 102,541.80

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Solution

The fourth proportional to 111,527.40, 167,291.10 and 102,541.80 is: 153,812.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,527.40 : 167,291.10 = 102,541.80 : x
  2. Step 2: Convert to fraction form
    111,527.40/167,291.10 = 102,541.80/x
  3. Step 3: Cross multiply
    111,527.40x = 167,291.10 × 102,541.80
  4. Step 4: Simplify right side
    111,527.40x = 17,154,330,517.98
  5. Step 5: Solve for x
    x = 17,154,330,517.98/111,527.40
  6. Step 6: Final answer
    x = 153,812.70

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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.