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Finding the Fourth Proportional to 88,043.88, 121,499.52 and 47,756.88

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Solution

The fourth proportional to 88,043.88, 121,499.52 and 47,756.88 is: 65,903.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,043.88 : 121,499.52 = 47,756.88 : x
  2. Step 2: Convert to fraction form
    88,043.88/121,499.52 = 47,756.88/x
  3. Step 3: Cross multiply
    88,043.88x = 121,499.52 × 47,756.88
  4. Step 4: Simplify right side
    88,043.88x = 5,802,437,996.70
  5. Step 5: Solve for x
    x = 5,802,437,996.70/88,043.88
  6. Step 6: Final answer
    x = 65,903.93

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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.