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Finding the Fourth Proportional to 353,341.20, 530,024.60 and 104,048.40

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Solution

The fourth proportional to 353,341.20, 530,024.60 and 104,048.40 is: 156,076.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,341.20 : 530,024.60 = 104,048.40 : x
  2. Step 2: Convert to fraction form
    353,341.20/530,024.60 = 104,048.40/x
  3. Step 3: Cross multiply
    353,341.20x = 530,024.60 × 104,048.40
  4. Step 4: Simplify right side
    353,341.20x = 55,148,211,590.64
  5. Step 5: Solve for x
    x = 55,148,211,590.64/353,341.20
  6. Step 6: Final answer
    x = 156,076.37

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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.