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Finding the Fourth Proportional to 74,204.88, 102,415.89 and 56,269.65

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Solution

The fourth proportional to 74,204.88, 102,415.89 and 56,269.65 is: 77,662.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,204.88 : 102,415.89 = 56,269.65 : x
  2. Step 2: Convert to fraction form
    74,204.88/102,415.89 = 56,269.65/x
  3. Step 3: Cross multiply
    74,204.88x = 102,415.89 × 56,269.65
  4. Step 4: Simplify right side
    74,204.88x = 5,762,906,284.74
  5. Step 5: Solve for x
    x = 5,762,906,284.74/74,204.88
  6. Step 6: Final answer
    x = 77,662.09

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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.