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Finding the Fourth Proportional to 113,895.92, 170,725 and 38,994

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Solution

The fourth proportional to 113,895.92, 170,725 and 38,994 is: 58,450.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,895.92 : 170,725 = 38,994 : x
  2. Step 2: Convert to fraction form
    113,895.92/170,725 = 38,994/x
  3. Step 3: Cross multiply
    113,895.92x = 170,725 × 38,994
  4. Step 4: Simplify right side
    113,895.92x = 6,657,250,650
  5. Step 5: Solve for x
    x = 6,657,250,650/113,895.92
  6. Step 6: Final answer
    x = 58,450.30

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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.