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Finding the Fourth Proportional to 125,052, 172,576.16 and 68,463.84

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Solution

The fourth proportional to 125,052, 172,576.16 and 68,463.84 is: 94,482.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,052 : 172,576.16 = 68,463.84 : x
  2. Step 2: Convert to fraction form
    125,052/172,576.16 = 68,463.84/x
  3. Step 3: Cross multiply
    125,052x = 172,576.16 × 68,463.84
  4. Step 4: Simplify right side
    125,052x = 11,815,226,606.05
  5. Step 5: Solve for x
    x = 11,815,226,606.05/125,052
  6. Step 6: Final answer
    x = 94,482.51

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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.