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Finding the Fourth Proportional to 69,678.68, 96,196.47 and 45,874.55

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Solution

The fourth proportional to 69,678.68, 96,196.47 and 45,874.55 is: 63,333.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,678.68 : 96,196.47 = 45,874.55 : x
  2. Step 2: Convert to fraction form
    69,678.68/96,196.47 = 45,874.55/x
  3. Step 3: Cross multiply
    69,678.68x = 96,196.47 × 45,874.55
  4. Step 4: Simplify right side
    69,678.68x = 4,412,969,429.22
  5. Step 5: Solve for x
    x = 4,412,969,429.22/69,678.68
  6. Step 6: Final answer
    x = 63,333.14

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1.5x scale

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.