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Finding the Fourth Proportional to 67,516.80, 101,080.80 and 60,518.40

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Solution

The fourth proportional to 67,516.80, 101,080.80 and 60,518.40 is: 90,603.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,516.80 : 101,080.80 = 60,518.40 : x
  2. Step 2: Convert to fraction form
    67,516.80/101,080.80 = 60,518.40/x
  3. Step 3: Cross multiply
    67,516.80x = 101,080.80 × 60,518.40
  4. Step 4: Simplify right side
    67,516.80x = 6,117,248,286.72
  5. Step 5: Solve for x
    x = 6,117,248,286.72/67,516.80
  6. Step 6: Final answer
    x = 90,603.35

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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.