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Finding the Fourth Proportional to 253,563.73, 349,941.41 and 140,386.48

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Solution

The fourth proportional to 253,563.73, 349,941.41 and 140,386.48 is: 193,746.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,563.73 : 349,941.41 = 140,386.48 : x
  2. Step 2: Convert to fraction form
    253,563.73/349,941.41 = 140,386.48/x
  3. Step 3: Cross multiply
    253,563.73x = 349,941.41 × 140,386.48
  4. Step 4: Simplify right side
    253,563.73x = 49,127,041,357.40
  5. Step 5: Solve for x
    x = 49,127,041,357.40/253,563.73
  6. Step 6: Final answer
    x = 193,746.33

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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.