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Finding the Fourth Proportional to 353,779.73, 530,887.16 and 140,510.33

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Solution

The fourth proportional to 353,779.73, 530,887.16 and 140,510.33 is: 210,851.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,779.73 : 530,887.16 = 140,510.33 : x
  2. Step 2: Convert to fraction form
    353,779.73/530,887.16 = 140,510.33/x
  3. Step 3: Cross multiply
    353,779.73x = 530,887.16 × 140,510.33
  4. Step 4: Simplify right side
    353,779.73x = 74,595,126,687.38
  5. Step 5: Solve for x
    x = 74,595,126,687.38/353,779.73
  6. Step 6: Final answer
    x = 210,851.90

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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.