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Finding the Fourth Proportional to 353,612.25, 530,515.76 and 104,294.25

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Solution

The fourth proportional to 353,612.25, 530,515.76 and 104,294.25 is: 156,470.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,612.25 : 530,515.76 = 104,294.25 : x
  2. Step 2: Convert to fraction form
    353,612.25/530,515.76 = 104,294.25/x
  3. Step 3: Cross multiply
    353,612.25x = 530,515.76 × 104,294.25
  4. Step 4: Simplify right side
    353,612.25x = 55,329,742,780.91
  5. Step 5: Solve for x
    x = 55,329,742,780.91/353,612.25
  6. Step 6: Final answer
    x = 156,470.10

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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.