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Finding the Fourth Proportional to 69,006.80, 103,315.80 and 62,008.40

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Solution

The fourth proportional to 69,006.80, 103,315.80 and 62,008.40 is: 92,837.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,006.80 : 103,315.80 = 62,008.40 : x
  2. Step 2: Convert to fraction form
    69,006.80/103,315.80 = 62,008.40/x
  3. Step 3: Cross multiply
    69,006.80x = 103,315.80 × 62,008.40
  4. Step 4: Simplify right side
    69,006.80x = 6,406,447,452.72
  5. Step 5: Solve for x
    x = 6,406,447,452.72/69,006.80
  6. Step 6: Final answer
    x = 92,837.92

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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.