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Finding the Fourth Proportional to 249,712.20, 374,803.20 and 131,468.40

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Solution

The fourth proportional to 249,712.20, 374,803.20 and 131,468.40 is: 197,326.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,712.20 : 374,803.20 = 131,468.40 : x
  2. Step 2: Convert to fraction form
    249,712.20/374,803.20 = 131,468.40/x
  3. Step 3: Cross multiply
    249,712.20x = 374,803.20 × 131,468.40
  4. Step 4: Simplify right side
    249,712.20x = 49,274,777,018.88
  5. Step 5: Solve for x
    x = 49,274,777,018.88/249,712.20
  6. Step 6: Final answer
    x = 197,326.27

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1.5x scale

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.