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Finding the Fourth Proportional to 103,644.04, 154,657.74 and 92,473.96

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Solution

The fourth proportional to 103,644.04, 154,657.74 and 92,473.96 is: 137,989.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,644.04 : 154,657.74 = 92,473.96 : x
  2. Step 2: Convert to fraction form
    103,644.04/154,657.74 = 92,473.96/x
  3. Step 3: Cross multiply
    103,644.04x = 154,657.74 × 92,473.96
  4. Step 4: Simplify right side
    103,644.04x = 14,301,813,200.08
  5. Step 5: Solve for x
    x = 14,301,813,200.08/103,644.04
  6. Step 6: Final answer
    x = 137,989.73

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.