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Finding the Fourth Proportional to 248,394.30, 372,479.40 and 70,859.04

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Solution

The fourth proportional to 248,394.30, 372,479.40 and 70,859.04 is: 106,256.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,394.30 : 372,479.40 = 70,859.04 : x
  2. Step 2: Convert to fraction form
    248,394.30/372,479.40 = 70,859.04/x
  3. Step 3: Cross multiply
    248,394.30x = 372,479.40 × 70,859.04
  4. Step 4: Simplify right side
    248,394.30x = 26,393,532,703.78
  5. Step 5: Solve for x
    x = 26,393,532,703.78/248,394.30
  6. Step 6: Final answer
    x = 106,256.60

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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.