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Finding the Fourth Proportional to 163,952.20, 245,928.30 and 162,915.40

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Solution

The fourth proportional to 163,952.20, 245,928.30 and 162,915.40 is: 244,373.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,952.20 : 245,928.30 = 162,915.40 : x
  2. Step 2: Convert to fraction form
    163,952.20/245,928.30 = 162,915.40/x
  3. Step 3: Cross multiply
    163,952.20x = 245,928.30 × 162,915.40
  4. Step 4: Simplify right side
    163,952.20x = 40,065,507,365.82
  5. Step 5: Solve for x
    x = 40,065,507,365.82/163,952.20
  6. Step 6: Final answer
    x = 244,373.10

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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.