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Finding the Fourth Proportional to 110,872.75, 152,824.71 and 86,631.34

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Solution

The fourth proportional to 110,872.75, 152,824.71 and 86,631.34 is: 119,410.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,872.75 : 152,824.71 = 86,631.34 : x
  2. Step 2: Convert to fraction form
    110,872.75/152,824.71 = 86,631.34/x
  3. Step 3: Cross multiply
    110,872.75x = 152,824.71 × 86,631.34
  4. Step 4: Simplify right side
    110,872.75x = 13,239,409,412.41
  5. Step 5: Solve for x
    x = 13,239,409,412.41/110,872.75
  6. Step 6: Final answer
    x = 119,410.85

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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.