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Finding the Fourth Proportional to 79,302.80, 118,948.02 and 29,359.40

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Solution

The fourth proportional to 79,302.80, 118,948.02 and 29,359.40 is: 44,036.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,302.80 : 118,948.02 = 29,359.40 : x
  2. Step 2: Convert to fraction form
    79,302.80/118,948.02 = 29,359.40/x
  3. Step 3: Cross multiply
    79,302.80x = 118,948.02 × 29,359.40
  4. Step 4: Simplify right side
    79,302.80x = 3,492,242,498.39
  5. Step 5: Solve for x
    x = 3,492,242,498.39/79,302.80
  6. Step 6: Final answer
    x = 44,036.81

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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.