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Finding the Fourth Proportional to 45,886.10, 68,719.80 and 45,886.10

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Solution

The fourth proportional to 45,886.10, 68,719.80 and 45,886.10 is: 68,719.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,886.10 : 68,719.80 = 45,886.10 : x
  2. Step 2: Convert to fraction form
    45,886.10/68,719.80 = 45,886.10/x
  3. Step 3: Cross multiply
    45,886.10x = 68,719.80 × 45,886.10
  4. Step 4: Simplify right side
    45,886.10x = 3,153,283,614.78
  5. Step 5: Solve for x
    x = 3,153,283,614.78/45,886.10
  6. Step 6: Final answer
    x = 68,719.80

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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.