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Finding the Fourth Proportional to 107,105.78, 147,803.73 and 59,358.71

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Solution

The fourth proportional to 107,105.78, 147,803.73 and 59,358.71 is: 81,913.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,105.78 : 147,803.73 = 59,358.71 : x
  2. Step 2: Convert to fraction form
    107,105.78/147,803.73 = 59,358.71/x
  3. Step 3: Cross multiply
    107,105.78x = 147,803.73 × 59,358.71
  4. Step 4: Simplify right side
    107,105.78x = 8,773,438,745.99
  5. Step 5: Solve for x
    x = 8,773,438,745.99/107,105.78
  6. Step 6: Final answer
    x = 81,913.77

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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.