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Finding the Fourth Proportional to 249,057.61, 343,788.25 and 147,083.49

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Solution

The fourth proportional to 249,057.61, 343,788.25 and 147,083.49 is: 203,027.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,057.61 : 343,788.25 = 147,083.49 : x
  2. Step 2: Convert to fraction form
    249,057.61/343,788.25 = 147,083.49/x
  3. Step 3: Cross multiply
    249,057.61x = 343,788.25 × 147,083.49
  4. Step 4: Simplify right side
    249,057.61x = 50,565,575,630.99
  5. Step 5: Solve for x
    x = 50,565,575,630.99/249,057.61
  6. Step 6: Final answer
    x = 203,027.63

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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.