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Finding the Fourth Proportional to 353,722.80, 529,417.80 and 248,746.80

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Solution

The fourth proportional to 353,722.80, 529,417.80 and 248,746.80 is: 372,299.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,722.80 : 529,417.80 = 248,746.80 : x
  2. Step 2: Convert to fraction form
    353,722.80/529,417.80 = 248,746.80/x
  3. Step 3: Cross multiply
    353,722.80x = 529,417.80 × 248,746.80
  4. Step 4: Simplify right side
    353,722.80x = 131,690,983,613.04
  5. Step 5: Solve for x
    x = 131,690,983,613.04/353,722.80
  6. Step 6: Final answer
    x = 372,299.96

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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.