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Finding the Fourth Proportional to 79,405.11, 119,106.95 and 35,031.90

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Solution

The fourth proportional to 79,405.11, 119,106.95 and 35,031.90 is: 52,547.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,405.11 : 119,106.95 = 35,031.90 : x
  2. Step 2: Convert to fraction form
    79,405.11/119,106.95 = 35,031.90/x
  3. Step 3: Cross multiply
    79,405.11x = 119,106.95 × 35,031.90
  4. Step 4: Simplify right side
    79,405.11x = 4,172,542,586.55
  5. Step 5: Solve for x
    x = 4,172,542,586.55/79,405.11
  6. Step 6: Final answer
    x = 52,547.53

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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.