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Finding the Fourth Proportional to 92,732.13, 128,000.52 and 54,491.01

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Solution

The fourth proportional to 92,732.13, 128,000.52 and 54,491.01 is: 75,215.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,732.13 : 128,000.52 = 54,491.01 : x
  2. Step 2: Convert to fraction form
    92,732.13/128,000.52 = 54,491.01/x
  3. Step 3: Cross multiply
    92,732.13x = 128,000.52 × 54,491.01
  4. Step 4: Simplify right side
    92,732.13x = 6,974,877,615.33
  5. Step 5: Solve for x
    x = 6,974,877,615.33/92,732.13
  6. Step 6: Final answer
    x = 75,215.33

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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.