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Finding the Fourth Proportional to 69,070.66, 103,605.99 and 49,387.66

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Solution

The fourth proportional to 69,070.66, 103,605.99 and 49,387.66 is: 74,081.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,070.66 : 103,605.99 = 49,387.66 : x
  2. Step 2: Convert to fraction form
    69,070.66/103,605.99 = 49,387.66/x
  3. Step 3: Cross multiply
    69,070.66x = 103,605.99 × 49,387.66
  4. Step 4: Simplify right side
    69,070.66x = 5,116,856,963.86
  5. Step 5: Solve for x
    x = 5,116,856,963.86/69,070.66
  6. Step 6: Final answer
    x = 74,081.49

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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.