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Finding the Fourth Proportional to 69,928.74, 96,508.63 and 42,703.33

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Solution

The fourth proportional to 69,928.74, 96,508.63 and 42,703.33 is: 58,934.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,928.74 : 96,508.63 = 42,703.33 : x
  2. Step 2: Convert to fraction form
    69,928.74/96,508.63 = 42,703.33/x
  3. Step 3: Cross multiply
    69,928.74x = 96,508.63 × 42,703.33
  4. Step 4: Simplify right side
    69,928.74x = 4,121,239,498.95
  5. Step 5: Solve for x
    x = 4,121,239,498.95/69,928.74
  6. Step 6: Final answer
    x = 58,934.84

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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.