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Finding the Fourth Proportional to 84,308.32, 116,369.76 and 55,648.92

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Solution

The fourth proportional to 84,308.32, 116,369.76 and 55,648.92 is: 76,811.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,308.32 : 116,369.76 = 55,648.92 : x
  2. Step 2: Convert to fraction form
    84,308.32/116,369.76 = 55,648.92/x
  3. Step 3: Cross multiply
    84,308.32x = 116,369.76 × 55,648.92
  4. Step 4: Simplify right side
    84,308.32x = 6,475,851,464.66
  5. Step 5: Solve for x
    x = 6,475,851,464.66/84,308.32
  6. Step 6: Final answer
    x = 76,811.53

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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.