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Finding the Fourth Proportional to 158,908, 238,362.32 and 67,699.84

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Solution

The fourth proportional to 158,908, 238,362.32 and 67,699.84 is: 101,549.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,908 : 238,362.32 = 67,699.84 : x
  2. Step 2: Convert to fraction form
    158,908/238,362.32 = 67,699.84/x
  3. Step 3: Cross multiply
    158,908x = 238,362.32 × 67,699.84
  4. Step 4: Simplify right side
    158,908x = 16,137,090,926.03
  5. Step 5: Solve for x
    x = 16,137,090,926.03/158,908
  6. Step 6: Final answer
    x = 101,549.90

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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.