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Finding the Fourth Proportional to 163,213.80, 244,820.70 and 113,447.40

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Solution

The fourth proportional to 163,213.80, 244,820.70 and 113,447.40 is: 170,171.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,213.80 : 244,820.70 = 113,447.40 : x
  2. Step 2: Convert to fraction form
    163,213.80/244,820.70 = 113,447.40/x
  3. Step 3: Cross multiply
    163,213.80x = 244,820.70 × 113,447.40
  4. Step 4: Simplify right side
    163,213.80x = 27,774,271,881.18
  5. Step 5: Solve for x
    x = 27,774,271,881.18/163,213.80
  6. Step 6: Final answer
    x = 170,171.10

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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.