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Finding the Fourth Proportional to 353,806.03, 530,155.23 and 140,458.71

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Solution

The fourth proportional to 353,806.03, 530,155.23 and 140,458.71 is: 210,468.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,806.03 : 530,155.23 = 140,458.71 : x
  2. Step 2: Convert to fraction form
    353,806.03/530,155.23 = 140,458.71/x
  3. Step 3: Cross multiply
    353,806.03x = 530,155.23 × 140,458.71
  4. Step 4: Simplify right side
    353,806.03x = 74,464,918,184.79
  5. Step 5: Solve for x
    x = 74,464,918,184.79/353,806.03
  6. Step 6: Final answer
    x = 210,468.20

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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.