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Finding the Fourth Proportional to 249,196.87, 343,879.72 and 141,756.85

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Solution

The fourth proportional to 249,196.87, 343,879.72 and 141,756.85 is: 195,617.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,196.87 : 343,879.72 = 141,756.85 : x
  2. Step 2: Convert to fraction form
    249,196.87/343,879.72 = 141,756.85/x
  3. Step 3: Cross multiply
    249,196.87x = 343,879.72 × 141,756.85
  4. Step 4: Simplify right side
    249,196.87x = 48,747,305,886.08
  5. Step 5: Solve for x
    x = 48,747,305,886.08/249,196.87
  6. Step 6: Final answer
    x = 195,617.65

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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.