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Finding the Fourth Proportional to 249,212.31, 343,920.77 and 141,797.80

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Solution

The fourth proportional to 249,212.31, 343,920.77 and 141,797.80 is: 195,685.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,212.31 : 343,920.77 = 141,797.80 : x
  2. Step 2: Convert to fraction form
    249,212.31/343,920.77 = 141,797.80/x
  3. Step 3: Cross multiply
    249,212.31x = 343,920.77 × 141,797.80
  4. Step 4: Simplify right side
    249,212.31x = 48,767,207,851.32
  5. Step 5: Solve for x
    x = 48,767,207,851.32/249,212.31
  6. Step 6: Final answer
    x = 195,685.39

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1.5x scale

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.