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Finding the Fourth Proportional to 249,401.40, 374,447.70 and 196,870.20

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Solution

The fourth proportional to 249,401.40, 374,447.70 and 196,870.20 is: 295,578.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,401.40 : 374,447.70 = 196,870.20 : x
  2. Step 2: Convert to fraction form
    249,401.40/374,447.70 = 196,870.20/x
  3. Step 3: Cross multiply
    249,401.40x = 374,447.70 × 196,870.20
  4. Step 4: Simplify right side
    249,401.40x = 73,717,593,588.54
  5. Step 5: Solve for x
    x = 73,717,593,588.54/249,401.40
  6. Step 6: Final answer
    x = 295,578.11

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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.