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Finding the Fourth Proportional to 67,508.80, 101,068.80 and 65,564.80

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Solution

The fourth proportional to 67,508.80, 101,068.80 and 65,564.80 is: 98,158.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,508.80 : 101,068.80 = 65,564.80 : x
  2. Step 2: Convert to fraction form
    67,508.80/101,068.80 = 65,564.80/x
  3. Step 3: Cross multiply
    67,508.80x = 101,068.80 × 65,564.80
  4. Step 4: Simplify right side
    67,508.80x = 6,626,555,658.24
  5. Step 5: Solve for x
    x = 6,626,555,658.24/67,508.80
  6. Step 6: Final answer
    x = 98,158.40

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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.