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Finding the Fourth Proportional to 103,816.56, 155,698.92 and 33,715.92

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Solution

The fourth proportional to 103,816.56, 155,698.92 and 33,715.92 is: 50,565.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,816.56 : 155,698.92 = 33,715.92 : x
  2. Step 2: Convert to fraction form
    103,816.56/155,698.92 = 33,715.92/x
  3. Step 3: Cross multiply
    103,816.56x = 155,698.92 × 33,715.92
  4. Step 4: Simplify right side
    103,816.56x = 5,249,532,330.81
  5. Step 5: Solve for x
    x = 5,249,532,330.81/103,816.56
  6. Step 6: Final answer
    x = 50,565.46

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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.