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Finding the Fourth Proportional to 107,300.60, 148,040.57 and 61,972.59

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Solution

The fourth proportional to 107,300.60, 148,040.57 and 61,972.59 is: 85,502.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,300.60 : 148,040.57 = 61,972.59 : x
  2. Step 2: Convert to fraction form
    107,300.60/148,040.57 = 61,972.59/x
  3. Step 3: Cross multiply
    107,300.60x = 148,040.57 × 61,972.59
  4. Step 4: Simplify right side
    107,300.60x = 9,174,458,258.06
  5. Step 5: Solve for x
    x = 9,174,458,258.06/107,300.60
  6. Step 6: Final answer
    x = 85,502.40

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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.