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Finding the Fourth Proportional to 299,132.09, 412,803.56 and 163,169.00

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Solution

The fourth proportional to 299,132.09, 412,803.56 and 163,169.00 is: 225,173.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,132.09 : 412,803.56 = 163,169.00 : x
  2. Step 2: Convert to fraction form
    299,132.09/412,803.56 = 163,169.00/x
  3. Step 3: Cross multiply
    299,132.09x = 412,803.56 × 163,169.00
  4. Step 4: Simplify right side
    299,132.09x = 67,356,742,425.54
  5. Step 5: Solve for x
    x = 67,356,742,425.54/299,132.09
  6. Step 6: Final answer
    x = 225,173.91

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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.