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Finding the Fourth Proportional to 159,715.99, 239,522.12 and 53,071.30

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Solution

The fourth proportional to 159,715.99, 239,522.12 and 53,071.30 is: 79,589.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,715.99 : 239,522.12 = 53,071.30 : x
  2. Step 2: Convert to fraction form
    159,715.99/239,522.12 = 53,071.30/x
  3. Step 3: Cross multiply
    159,715.99x = 239,522.12 × 53,071.30
  4. Step 4: Simplify right side
    159,715.99x = 12,711,750,669.48
  5. Step 5: Solve for x
    x = 12,711,750,669.48/159,715.99
  6. Step 6: Final answer
    x = 79,589.72

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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.