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Finding the Fourth Proportional to 60,702.78, 83,783.28 and 39,445.14

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Solution

The fourth proportional to 60,702.78, 83,783.28 and 39,445.14 is: 54,443.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,702.78 : 83,783.28 = 39,445.14 : x
  2. Step 2: Convert to fraction form
    60,702.78/83,783.28 = 39,445.14/x
  3. Step 3: Cross multiply
    60,702.78x = 83,783.28 × 39,445.14
  4. Step 4: Simplify right side
    60,702.78x = 3,304,843,209.26
  5. Step 5: Solve for x
    x = 3,304,843,209.26/60,702.78
  6. Step 6: Final answer
    x = 54,443.03

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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.