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Finding the Fourth Proportional to 366,545.39, 549,645.53 and 142,010.96

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Solution

The fourth proportional to 366,545.39, 549,645.53 and 142,010.96 is: 212,949.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,545.39 : 549,645.53 = 142,010.96 : x
  2. Step 2: Convert to fraction form
    366,545.39/549,645.53 = 142,010.96/x
  3. Step 3: Cross multiply
    366,545.39x = 549,645.53 × 142,010.96
  4. Step 4: Simplify right side
    366,545.39x = 78,055,685,916.73
  5. Step 5: Solve for x
    x = 78,055,685,916.73/366,545.39
  6. Step 6: Final answer
    x = 212,949.58

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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.