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Finding the Fourth Proportional to 259,900.90, 389,851.35 and 62,908.90

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Solution

The fourth proportional to 259,900.90, 389,851.35 and 62,908.90 is: 94,363.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,900.90 : 389,851.35 = 62,908.90 : x
  2. Step 2: Convert to fraction form
    259,900.90/389,851.35 = 62,908.90/x
  3. Step 3: Cross multiply
    259,900.90x = 389,851.35 × 62,908.90
  4. Step 4: Simplify right side
    259,900.90x = 24,525,119,592.02
  5. Step 5: Solve for x
    x = 24,525,119,592.02/259,900.90
  6. Step 6: Final answer
    x = 94,363.35

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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.