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Finding the Fourth Proportional to 248,341.20, 372,375.72 and 98,429.64

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Solution

The fourth proportional to 248,341.20, 372,375.72 and 98,429.64 is: 147,590.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,341.20 : 372,375.72 = 98,429.64 : x
  2. Step 2: Convert to fraction form
    248,341.20/372,375.72 = 98,429.64/x
  3. Step 3: Cross multiply
    248,341.20x = 372,375.72 × 98,429.64
  4. Step 4: Simplify right side
    248,341.20x = 36,652,808,064.34
  5. Step 5: Solve for x
    x = 36,652,808,064.34/248,341.20
  6. Step 6: Final answer
    x = 147,590.52

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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.