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Finding the Fourth Proportional to 87,573.60, 120,854.58 and 51,794.28

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Solution

The fourth proportional to 87,573.60, 120,854.58 and 51,794.28 is: 71,477.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,573.60 : 120,854.58 = 51,794.28 : x
  2. Step 2: Convert to fraction form
    87,573.60/120,854.58 = 51,794.28/x
  3. Step 3: Cross multiply
    87,573.60x = 120,854.58 × 51,794.28
  4. Step 4: Simplify right side
    87,573.60x = 6,259,575,955.80
  5. Step 5: Solve for x
    x = 6,259,575,955.80/87,573.60
  6. Step 6: Final answer
    x = 71,477.89

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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.