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Finding the Fourth Proportional to 298,923.49, 448,287.72 and 99,190.25

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Solution

The fourth proportional to 298,923.49, 448,287.72 and 99,190.25 is: 148,753.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,923.49 : 448,287.72 = 99,190.25 : x
  2. Step 2: Convert to fraction form
    298,923.49/448,287.72 = 99,190.25/x
  3. Step 3: Cross multiply
    298,923.49x = 448,287.72 × 99,190.25
  4. Step 4: Simplify right side
    298,923.49x = 44,465,771,018.73
  5. Step 5: Solve for x
    x = 44,465,771,018.73/298,923.49
  6. Step 6: Final answer
    x = 148,753.02

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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.