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Finding the Fourth Proportional to 400,133.70, 600,201.15 and 163,476.61

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Solution

The fourth proportional to 400,133.70, 600,201.15 and 163,476.61 is: 245,215.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,133.70 : 600,201.15 = 163,476.61 : x
  2. Step 2: Convert to fraction form
    400,133.70/600,201.15 = 163,476.61/x
  3. Step 3: Cross multiply
    400,133.70x = 600,201.15 × 163,476.61
  4. Step 4: Simplify right side
    400,133.70x = 98,118,849,320.10
  5. Step 5: Solve for x
    x = 98,118,849,320.10/400,133.70
  6. Step 6: Final answer
    x = 245,215.16

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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.