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Finding the Fourth Proportional to 79,088.64, 118,483.93 and 39,060.78

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Solution

The fourth proportional to 79,088.64, 118,483.93 and 39,060.78 is: 58,517.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,088.64 : 118,483.93 = 39,060.78 : x
  2. Step 2: Convert to fraction form
    79,088.64/118,483.93 = 39,060.78/x
  3. Step 3: Cross multiply
    79,088.64x = 118,483.93 × 39,060.78
  4. Step 4: Simplify right side
    79,088.64x = 4,628,074,723.27
  5. Step 5: Solve for x
    x = 4,628,074,723.27/79,088.64
  6. Step 6: Final answer
    x = 58,517.57

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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.