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Finding the Fourth Proportional to 125,124.64, 172,674.24 and 68,532.37

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Solution

The fourth proportional to 125,124.64, 172,674.24 and 68,532.37 is: 94,575.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,124.64 : 172,674.24 = 68,532.37 : x
  2. Step 2: Convert to fraction form
    125,124.64/172,674.24 = 68,532.37/x
  3. Step 3: Cross multiply
    125,124.64x = 172,674.24 × 68,532.37
  4. Step 4: Simplify right side
    125,124.64x = 11,833,774,905.15
  5. Step 5: Solve for x
    x = 11,833,774,905.15/125,124.64
  6. Step 6: Final answer
    x = 94,575.90

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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.