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Finding the Fourth Proportional to 158,805.90, 238,014.45 and 69,965.10

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Solution

The fourth proportional to 158,805.90, 238,014.45 and 69,965.10 is: 104,862.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,805.90 : 238,014.45 = 69,965.10 : x
  2. Step 2: Convert to fraction form
    158,805.90/238,014.45 = 69,965.10/x
  3. Step 3: Cross multiply
    158,805.90x = 238,014.45 × 69,965.10
  4. Step 4: Simplify right side
    158,805.90x = 16,652,704,795.70
  5. Step 5: Solve for x
    x = 16,652,704,795.70/158,805.90
  6. Step 6: Final answer
    x = 104,862.00

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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.