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Finding the Fourth Proportional to 103,432.30, 155,038.09 and 58,963.30

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Solution

The fourth proportional to 103,432.30, 155,038.09 and 58,963.30 is: 88,382.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,432.30 : 155,038.09 = 58,963.30 : x
  2. Step 2: Convert to fraction form
    103,432.30/155,038.09 = 58,963.30/x
  3. Step 3: Cross multiply
    103,432.30x = 155,038.09 × 58,963.30
  4. Step 4: Simplify right side
    103,432.30x = 9,141,557,117.28
  5. Step 5: Solve for x
    x = 9,141,557,117.28/103,432.30
  6. Step 6: Final answer
    x = 88,382.03

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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.