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Finding the Fourth Proportional to 68,673.47, 103,478.15 and 56,466.95

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Solution

The fourth proportional to 68,673.47, 103,478.15 and 56,466.95 is: 85,085.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,673.47 : 103,478.15 = 56,466.95 : x
  2. Step 2: Convert to fraction form
    68,673.47/103,478.15 = 56,466.95/x
  3. Step 3: Cross multiply
    68,673.47x = 103,478.15 × 56,466.95
  4. Step 4: Simplify right side
    68,673.47x = 5,843,094,722.42
  5. Step 5: Solve for x
    x = 5,843,094,722.42/68,673.47
  6. Step 6: Final answer
    x = 85,085.19

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.