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Finding the Fourth Proportional to 101,397.17, 151,962.63 and 74,617.76

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Solution

The fourth proportional to 101,397.17, 151,962.63 and 74,617.76 is: 111,828.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,397.17 : 151,962.63 = 74,617.76 : x
  2. Step 2: Convert to fraction form
    101,397.17/151,962.63 = 74,617.76/x
  3. Step 3: Cross multiply
    101,397.17x = 151,962.63 × 74,617.76
  4. Step 4: Simplify right side
    101,397.17x = 11,339,110,294.50
  5. Step 5: Solve for x
    x = 11,339,110,294.50/101,397.17
  6. Step 6: Final answer
    x = 111,828.67

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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.