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Finding the Fourth Proportional to 104,805.90, 157,208.85 and 34,690.68

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Solution

The fourth proportional to 104,805.90, 157,208.85 and 34,690.68 is: 52,036.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,805.90 : 157,208.85 = 34,690.68 : x
  2. Step 2: Convert to fraction form
    104,805.90/157,208.85 = 34,690.68/x
  3. Step 3: Cross multiply
    104,805.90x = 157,208.85 × 34,690.68
  4. Step 4: Simplify right side
    104,805.90x = 5,453,681,908.52
  5. Step 5: Solve for x
    x = 5,453,681,908.52/104,805.90
  6. Step 6: Final answer
    x = 52,036.02

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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.