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Finding the Fourth Proportional to 353,397.83, 530,094.31 and 143,032.73

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Solution

The fourth proportional to 353,397.83, 530,094.31 and 143,032.73 is: 214,548.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,397.83 : 530,094.31 = 143,032.73 : x
  2. Step 2: Convert to fraction form
    353,397.83/530,094.31 = 143,032.73/x
  3. Step 3: Cross multiply
    353,397.83x = 530,094.31 × 143,032.73
  4. Step 4: Simplify right side
    353,397.83x = 75,820,832,951.13
  5. Step 5: Solve for x
    x = 75,820,832,951.13/353,397.83
  6. Step 6: Final answer
    x = 214,548.10

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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.