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Finding the Fourth Proportional to 113,432, 170,149.44 and 39,560

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Solution

The fourth proportional to 113,432, 170,149.44 and 39,560 is: 59,340.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,432 : 170,149.44 = 39,560 : x
  2. Step 2: Convert to fraction form
    113,432/170,149.44 = 39,560/x
  3. Step 3: Cross multiply
    113,432x = 170,149.44 × 39,560
  4. Step 4: Simplify right side
    113,432x = 6,731,111,846.40
  5. Step 5: Solve for x
    x = 6,731,111,846.40/113,432
  6. Step 6: Final answer
    x = 59,340.50

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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.