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Finding the Fourth Proportional to 85,652.48, 128,491.14 and 29,506.52

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Solution

The fourth proportional to 85,652.48, 128,491.14 and 29,506.52 is: 44,264.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,652.48 : 128,491.14 = 29,506.52 : x
  2. Step 2: Convert to fraction form
    85,652.48/128,491.14 = 29,506.52/x
  3. Step 3: Cross multiply
    85,652.48x = 128,491.14 × 29,506.52
  4. Step 4: Simplify right side
    85,652.48x = 3,791,326,392.23
  5. Step 5: Solve for x
    x = 3,791,326,392.23/85,652.48
  6. Step 6: Final answer
    x = 44,264.06

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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.