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Finding the Fourth Proportional to 108,573.39, 149,901.21 and 88,478.28

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Solution

The fourth proportional to 108,573.39, 149,901.21 and 88,478.28 is: 122,157.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,573.39 : 149,901.21 = 88,478.28 : x
  2. Step 2: Convert to fraction form
    108,573.39/149,901.21 = 88,478.28/x
  3. Step 3: Cross multiply
    108,573.39x = 149,901.21 × 88,478.28
  4. Step 4: Simplify right side
    108,573.39x = 13,263,001,230.72
  5. Step 5: Solve for x
    x = 13,263,001,230.72/108,573.39
  6. Step 6: Final answer
    x = 122,157.01

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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.