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Finding the Fourth Proportional to 88,025.88, 121,475.78 and 47,739.63

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Solution

The fourth proportional to 88,025.88, 121,475.78 and 47,739.63 is: 65,880.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,025.88 : 121,475.78 = 47,739.63 : x
  2. Step 2: Convert to fraction form
    88,025.88/121,475.78 = 47,739.63/x
  3. Step 3: Cross multiply
    88,025.88x = 121,475.78 × 47,739.63
  4. Step 4: Simplify right side
    88,025.88x = 5,799,208,791.16
  5. Step 5: Solve for x
    x = 5,799,208,791.16/88,025.88
  6. Step 6: Final answer
    x = 65,880.72

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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.