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Finding the Fourth Proportional to 108,812.88, 163,218.96 and 29,921.04

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Solution

The fourth proportional to 108,812.88, 163,218.96 and 29,921.04 is: 44,881.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,812.88 : 163,218.96 = 29,921.04 : x
  2. Step 2: Convert to fraction form
    108,812.88/163,218.96 = 29,921.04/x
  3. Step 3: Cross multiply
    108,812.88x = 163,218.96 × 29,921.04
  4. Step 4: Simplify right side
    108,812.88x = 4,883,681,030.92
  5. Step 5: Solve for x
    x = 4,883,681,030.92/108,812.88
  6. Step 6: Final answer
    x = 44,881.46

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1.5x scale

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.