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Finding the Fourth Proportional to 143,790.99, 215,550.41 and 59,498.55

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Solution

The fourth proportional to 143,790.99, 215,550.41 and 59,498.55 is: 89,191.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,790.99 : 215,550.41 = 59,498.55 : x
  2. Step 2: Convert to fraction form
    143,790.99/215,550.41 = 59,498.55/x
  3. Step 3: Cross multiply
    143,790.99x = 215,550.41 × 59,498.55
  4. Step 4: Simplify right side
    143,790.99x = 12,824,935,471.66
  5. Step 5: Solve for x
    x = 12,824,935,471.66/143,790.99
  6. Step 6: Final answer
    x = 89,191.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.