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Finding the Fourth Proportional to 111,695.74, 167,503.04 and 61,132.14

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Solution

The fourth proportional to 111,695.74, 167,503.04 and 61,132.14 is: 91,676.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,695.74 : 167,503.04 = 61,132.14 : x
  2. Step 2: Convert to fraction form
    111,695.74/167,503.04 = 61,132.14/x
  3. Step 3: Cross multiply
    111,695.74x = 167,503.04 × 61,132.14
  4. Step 4: Simplify right side
    111,695.74x = 10,239,819,291.71
  5. Step 5: Solve for x
    x = 10,239,819,291.71/111,695.74
  6. Step 6: Final answer
    x = 91,676.01

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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.