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Finding the Fourth Proportional to 220,390.06, 304,136.76 and 119,788.06

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Solution

The fourth proportional to 220,390.06, 304,136.76 and 119,788.06 is: 165,306.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,390.06 : 304,136.76 = 119,788.06 : x
  2. Step 2: Convert to fraction form
    220,390.06/304,136.76 = 119,788.06/x
  3. Step 3: Cross multiply
    220,390.06x = 304,136.76 × 119,788.06
  4. Step 4: Simplify right side
    220,390.06x = 36,431,952,455.09
  5. Step 5: Solve for x
    x = 36,431,952,455.09/220,390.06
  6. Step 6: Final answer
    x = 165,306.70

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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.