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Finding the Fourth Proportional to 104,618.16, 157,019.25 and 57,276.90

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Solution

The fourth proportional to 104,618.16, 157,019.25 and 57,276.90 is: 85,965.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,618.16 : 157,019.25 = 57,276.90 : x
  2. Step 2: Convert to fraction form
    104,618.16/157,019.25 = 57,276.90/x
  3. Step 3: Cross multiply
    104,618.16x = 157,019.25 × 57,276.90
  4. Step 4: Simplify right side
    104,618.16x = 8,993,575,880.33
  5. Step 5: Solve for x
    x = 8,993,575,880.33/104,618.16
  6. Step 6: Final answer
    x = 85,965.72

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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.