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Finding the Fourth Proportional to 250,036.26, 374,987.78 and 70,111.78

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Solution

The fourth proportional to 250,036.26, 374,987.78 and 70,111.78 is: 105,148.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,036.26 : 374,987.78 = 70,111.78 : x
  2. Step 2: Convert to fraction form
    250,036.26/374,987.78 = 70,111.78/x
  3. Step 3: Cross multiply
    250,036.26x = 374,987.78 × 70,111.78
  4. Step 4: Simplify right side
    250,036.26x = 26,291,060,734.05
  5. Step 5: Solve for x
    x = 26,291,060,734.05/250,036.26
  6. Step 6: Final answer
    x = 105,148.99

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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.