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Finding the Fourth Proportional to 71,205.36, 98,258.52 and 39,373.96

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Solution

The fourth proportional to 71,205.36, 98,258.52 and 39,373.96 is: 54,333.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,205.36 : 98,258.52 = 39,373.96 : x
  2. Step 2: Convert to fraction form
    71,205.36/98,258.52 = 39,373.96/x
  3. Step 3: Cross multiply
    71,205.36x = 98,258.52 × 39,373.96
  4. Step 4: Simplify right side
    71,205.36x = 3,868,827,036.14
  5. Step 5: Solve for x
    x = 3,868,827,036.14/71,205.36
  6. Step 6: Final answer
    x = 54,333.37

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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.