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Finding the Fourth Proportional to 88,333.70, 121,889.43 and 59,715.63

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Solution

The fourth proportional to 88,333.70, 121,889.43 and 59,715.63 is: 82,400.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,333.70 : 121,889.43 = 59,715.63 : x
  2. Step 2: Convert to fraction form
    88,333.70/121,889.43 = 59,715.63/x
  3. Step 3: Cross multiply
    88,333.70x = 121,889.43 × 59,715.63
  4. Step 4: Simplify right side
    88,333.70x = 7,278,704,102.79
  5. Step 5: Solve for x
    x = 7,278,704,102.79/88,333.70
  6. Step 6: Final answer
    x = 82,400.08

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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.