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Finding the Fourth Proportional to 104,105.59, 143,665.55 and 56,358.92

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Solution

The fourth proportional to 104,105.59, 143,665.55 and 56,358.92 is: 77,775.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,105.59 : 143,665.55 = 56,358.92 : x
  2. Step 2: Convert to fraction form
    104,105.59/143,665.55 = 56,358.92/x
  3. Step 3: Cross multiply
    104,105.59x = 143,665.55 × 56,358.92
  4. Step 4: Simplify right side
    104,105.59x = 8,096,835,527.92
  5. Step 5: Solve for x
    x = 8,096,835,527.92/104,105.59
  6. Step 6: Final answer
    x = 77,775.23

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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.