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Finding the Fourth Proportional to 353,409.62, 530,111.93 and 143,044.52

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Solution

The fourth proportional to 353,409.62, 530,111.93 and 143,044.52 is: 214,565.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,409.62 : 530,111.93 = 143,044.52 : x
  2. Step 2: Convert to fraction form
    353,409.62/530,111.93 = 143,044.52/x
  3. Step 3: Cross multiply
    353,409.62x = 530,111.93 × 143,044.52
  4. Step 4: Simplify right side
    353,409.62x = 75,829,603,207.34
  5. Step 5: Solve for x
    x = 75,829,603,207.34/353,409.62
  6. Step 6: Final answer
    x = 214,565.76

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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.