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Finding the Fourth Proportional to 203,162.88, 304,724.88 and 70,024.80

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Solution

The fourth proportional to 203,162.88, 304,724.88 and 70,024.80 is: 105,030.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,162.88 : 304,724.88 = 70,024.80 : x
  2. Step 2: Convert to fraction form
    203,162.88/304,724.88 = 70,024.80/x
  3. Step 3: Cross multiply
    203,162.88x = 304,724.88 × 70,024.80
  4. Step 4: Simplify right side
    203,162.88x = 21,338,298,777.02
  5. Step 5: Solve for x
    x = 21,338,298,777.02/203,162.88
  6. Step 6: Final answer
    x = 105,030.50

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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.