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Finding the Fourth Proportional to 108,392.80, 149,516.58 and 71,599.24

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Solution

The fourth proportional to 108,392.80, 149,516.58 and 71,599.24 is: 98,763.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,392.80 : 149,516.58 = 71,599.24 : x
  2. Step 2: Convert to fraction form
    108,392.80/149,516.58 = 71,599.24/x
  3. Step 3: Cross multiply
    108,392.80x = 149,516.58 × 71,599.24
  4. Step 4: Simplify right side
    108,392.80x = 10,705,273,495.40
  5. Step 5: Solve for x
    x = 10,705,273,495.40/108,392.80
  6. Step 6: Final answer
    x = 98,763.70

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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.