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Finding the Fourth Proportional to 94,009.60, 141,065.60 and 38,611.20

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Solution

The fourth proportional to 94,009.60, 141,065.60 and 38,611.20 is: 57,937.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,009.60 : 141,065.60 = 38,611.20 : x
  2. Step 2: Convert to fraction form
    94,009.60/141,065.60 = 38,611.20/x
  3. Step 3: Cross multiply
    94,009.60x = 141,065.60 × 38,611.20
  4. Step 4: Simplify right side
    94,009.60x = 5,446,712,094.72
  5. Step 5: Solve for x
    x = 5,446,712,094.72/94,009.60
  6. Step 6: Final answer
    x = 57,937.83

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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.