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Finding the Fourth Proportional to 79,370.40, 119,055.60 and 61,853.40

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Solution

The fourth proportional to 79,370.40, 119,055.60 and 61,853.40 is: 92,780.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,370.40 : 119,055.60 = 61,853.40 : x
  2. Step 2: Convert to fraction form
    79,370.40/119,055.60 = 61,853.40/x
  3. Step 3: Cross multiply
    79,370.40x = 119,055.60 × 61,853.40
  4. Step 4: Simplify right side
    79,370.40x = 7,363,993,649.04
  5. Step 5: Solve for x
    x = 7,363,993,649.04/79,370.40
  6. Step 6: Final answer
    x = 92,780.10

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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.