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Finding the Fourth Proportional to 299,499.90, 413,306.73 and 163,533.45

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Solution

The fourth proportional to 299,499.90, 413,306.73 and 163,533.45 is: 225,674.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,499.90 : 413,306.73 = 163,533.45 : x
  2. Step 2: Convert to fraction form
    299,499.90/413,306.73 = 163,533.45/x
  3. Step 3: Cross multiply
    299,499.90x = 413,306.73 × 163,533.45
  4. Step 4: Simplify right side
    299,499.90x = 67,589,475,465.12
  5. Step 5: Solve for x
    x = 67,589,475,465.12/299,499.90
  6. Step 6: Final answer
    x = 225,674.45

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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.