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Finding the Fourth Proportional to 249,338.96, 373,900.30 and 136,985.48

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Solution

The fourth proportional to 249,338.96, 373,900.30 and 136,985.48 is: 205,418.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,338.96 : 373,900.30 = 136,985.48 : x
  2. Step 2: Convert to fraction form
    249,338.96/373,900.30 = 136,985.48/x
  3. Step 3: Cross multiply
    249,338.96x = 373,900.30 × 136,985.48
  4. Step 4: Simplify right side
    249,338.96x = 51,218,912,028.35
  5. Step 5: Solve for x
    x = 51,218,912,028.35/249,338.96
  6. Step 6: Final answer
    x = 205,418.81

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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.