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Finding the Fourth Proportional to 353,332.20, 530,011.10 and 104,039.40

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Solution

The fourth proportional to 353,332.20, 530,011.10 and 104,039.40 is: 156,062.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,332.20 : 530,011.10 = 104,039.40 : x
  2. Step 2: Convert to fraction form
    353,332.20/530,011.10 = 104,039.40/x
  3. Step 3: Cross multiply
    353,332.20x = 530,011.10 × 104,039.40
  4. Step 4: Simplify right side
    353,332.20x = 55,142,036,837.34
  5. Step 5: Solve for x
    x = 55,142,036,837.34/353,332.20
  6. Step 6: Final answer
    x = 156,062.87

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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.