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Finding the Fourth Proportional to 103,695.60, 155,370.60 and 97,474.80

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Solution

The fourth proportional to 103,695.60, 155,370.60 and 97,474.80 is: 146,049.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,695.60 : 155,370.60 = 97,474.80 : x
  2. Step 2: Convert to fraction form
    103,695.60/155,370.60 = 97,474.80/x
  3. Step 3: Cross multiply
    103,695.60x = 155,370.60 × 97,474.80
  4. Step 4: Simplify right side
    103,695.60x = 15,144,718,160.88
  5. Step 5: Solve for x
    x = 15,144,718,160.88/103,695.60
  6. Step 6: Final answer
    x = 146,049.77

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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.