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Finding the Fourth Proportional to 249,883.32, 374,824.70 and 81,403.39

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Solution

The fourth proportional to 249,883.32, 374,824.70 and 81,403.39 is: 122,104.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,883.32 : 374,824.70 = 81,403.39 : x
  2. Step 2: Convert to fraction form
    249,883.32/374,824.70 = 81,403.39/x
  3. Step 3: Cross multiply
    249,883.32x = 374,824.70 × 81,403.39
  4. Step 4: Simplify right side
    249,883.32x = 30,512,001,235.73
  5. Step 5: Solve for x
    x = 30,512,001,235.73/249,883.32
  6. Step 6: Final answer
    x = 122,104.99

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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.