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Finding the Fourth Proportional to 248,370.86, 372,559.68 and 70,877.78

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Solution

The fourth proportional to 248,370.86, 372,559.68 and 70,877.78 is: 106,317.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,370.86 : 372,559.68 = 70,877.78 : x
  2. Step 2: Convert to fraction form
    248,370.86/372,559.68 = 70,877.78/x
  3. Step 3: Cross multiply
    248,370.86x = 372,559.68 × 70,877.78
  4. Step 4: Simplify right side
    248,370.86x = 26,406,203,035.91
  5. Step 5: Solve for x
    x = 26,406,203,035.91/248,370.86
  6. Step 6: Final answer
    x = 106,317.64

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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.