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Finding the Fourth Proportional to 209,877.50, 289,631.93 and 119,238.44

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Solution

The fourth proportional to 209,877.50, 289,631.93 and 119,238.44 is: 164,549.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,877.50 : 289,631.93 = 119,238.44 : x
  2. Step 2: Convert to fraction form
    209,877.50/289,631.93 = 119,238.44/x
  3. Step 3: Cross multiply
    209,877.50x = 289,631.93 × 119,238.44
  4. Step 4: Simplify right side
    209,877.50x = 34,535,257,463.04
  5. Step 5: Solve for x
    x = 34,535,257,463.04/209,877.50
  6. Step 6: Final answer
    x = 164,549.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.