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Finding the Fourth Proportional to 107,300.34, 148,040.19 and 61,972.34

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Solution

The fourth proportional to 107,300.34, 148,040.19 and 61,972.34 is: 85,502.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,300.34 : 148,040.19 = 61,972.34 : x
  2. Step 2: Convert to fraction form
    107,300.34/148,040.19 = 61,972.34/x
  3. Step 3: Cross multiply
    107,300.34x = 148,040.19 × 61,972.34
  4. Step 4: Simplify right side
    107,300.34x = 9,174,396,248.14
  5. Step 5: Solve for x
    x = 9,174,396,248.14/107,300.34
  6. Step 6: Final answer
    x = 85,502.02

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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.