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Finding the Fourth Proportional to 71,325.10, 106,987.65 and 49,206.70

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Solution

The fourth proportional to 71,325.10, 106,987.65 and 49,206.70 is: 73,810.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,325.10 : 106,987.65 = 49,206.70 : x
  2. Step 2: Convert to fraction form
    71,325.10/106,987.65 = 49,206.70/x
  3. Step 3: Cross multiply
    71,325.10x = 106,987.65 × 49,206.70
  4. Step 4: Simplify right side
    71,325.10x = 5,264,509,197.26
  5. Step 5: Solve for x
    x = 5,264,509,197.26/71,325.10
  6. Step 6: Final answer
    x = 73,810.05

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1.5x scale

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.