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Finding the Fourth Proportional to 108,492.88, 149,722.96 and 60,756.32

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Solution

The fourth proportional to 108,492.88, 149,722.96 and 60,756.32 is: 83,845.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,492.88 : 149,722.96 = 60,756.32 : x
  2. Step 2: Convert to fraction form
    108,492.88/149,722.96 = 60,756.32/x
  3. Step 3: Cross multiply
    108,492.88x = 149,722.96 × 60,756.32
  4. Step 4: Simplify right side
    108,492.88x = 9,096,616,069.11
  5. Step 5: Solve for x
    x = 9,096,616,069.11/108,492.88
  6. Step 6: Final answer
    x = 83,845.28

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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.