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Finding the Fourth Proportional to 68,676.53, 103,482.76 and 56,470.00

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Solution

The fourth proportional to 68,676.53, 103,482.76 and 56,470.00 is: 85,089.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,676.53 : 103,482.76 = 56,470.00 : x
  2. Step 2: Convert to fraction form
    68,676.53/103,482.76 = 56,470.00/x
  3. Step 3: Cross multiply
    68,676.53x = 103,482.76 × 56,470.00
  4. Step 4: Simplify right side
    68,676.53x = 5,843,671,269.08
  5. Step 5: Solve for x
    x = 5,843,671,269.08/68,676.53
  6. Step 6: Final answer
    x = 85,089.79

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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.