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Finding the Fourth Proportional to 158,637.64, 238,018.77 and 69,828.89

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Solution

The fourth proportional to 158,637.64, 238,018.77 and 69,828.89 is: 104,770.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,637.64 : 238,018.77 = 69,828.89 : x
  2. Step 2: Convert to fraction form
    158,637.64/238,018.77 = 69,828.89/x
  3. Step 3: Cross multiply
    158,637.64x = 238,018.77 × 69,828.89
  4. Step 4: Simplify right side
    158,637.64x = 16,620,586,508.27
  5. Step 5: Solve for x
    x = 16,620,586,508.27/158,637.64
  6. Step 6: Final answer
    x = 104,770.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.