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Finding the Fourth Proportional to 67,271.80, 92,733.66 and 55,314.40

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Solution

The fourth proportional to 67,271.80, 92,733.66 and 55,314.40 is: 76,250.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,271.80 : 92,733.66 = 55,314.40 : x
  2. Step 2: Convert to fraction form
    67,271.80/92,733.66 = 55,314.40/x
  3. Step 3: Cross multiply
    67,271.80x = 92,733.66 × 55,314.40
  4. Step 4: Simplify right side
    67,271.80x = 5,129,506,762.70
  5. Step 5: Solve for x
    x = 5,129,506,762.70/67,271.80
  6. Step 6: Final answer
    x = 76,250.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.