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Finding the Fourth Proportional to 147,045.06, 220,600.80 and 53,550

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Solution

The fourth proportional to 147,045.06, 220,600.80 and 53,550 is: 80,337.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,045.06 : 220,600.80 = 53,550 : x
  2. Step 2: Convert to fraction form
    147,045.06/220,600.80 = 53,550/x
  3. Step 3: Cross multiply
    147,045.06x = 220,600.80 × 53,550
  4. Step 4: Simplify right side
    147,045.06x = 11,813,172,840
  5. Step 5: Solve for x
    x = 11,813,172,840/147,045.06
  6. Step 6: Final answer
    x = 80,337.09

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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.