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Finding the Fourth Proportional to 158,651.55, 237,915.59 and 79,710.75

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Solution

The fourth proportional to 158,651.55, 237,915.59 and 79,710.75 is: 119,535.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,651.55 : 237,915.59 = 79,710.75 : x
  2. Step 2: Convert to fraction form
    158,651.55/237,915.59 = 79,710.75/x
  3. Step 3: Cross multiply
    158,651.55x = 237,915.59 × 79,710.75
  4. Step 4: Simplify right side
    158,651.55x = 18,964,429,717.04
  5. Step 5: Solve for x
    x = 18,964,429,717.04/158,651.55
  6. Step 6: Final answer
    x = 119,535.11

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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.