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Finding the Fourth Proportional to 158,833.68, 219,180.58 and 87,213.36

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Solution

The fourth proportional to 158,833.68, 219,180.58 and 87,213.36 is: 120,349.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,833.68 : 219,180.58 = 87,213.36 : x
  2. Step 2: Convert to fraction form
    158,833.68/219,180.58 = 87,213.36/x
  3. Step 3: Cross multiply
    158,833.68x = 219,180.58 × 87,213.36
  4. Step 4: Simplify right side
    158,833.68x = 19,115,474,828.55
  5. Step 5: Solve for x
    x = 19,115,474,828.55/158,833.68
  6. Step 6: Final answer
    x = 120,349.00

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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.