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Finding the Fourth Proportional to 108,509.84, 149,753 and 60,762.32

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Solution

The fourth proportional to 108,509.84, 149,753 and 60,762.32 is: 83,857.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,509.84 : 149,753 = 60,762.32 : x
  2. Step 2: Convert to fraction form
    108,509.84/149,753 = 60,762.32/x
  3. Step 3: Cross multiply
    108,509.84x = 149,753 × 60,762.32
  4. Step 4: Simplify right side
    108,509.84x = 9,099,339,706.96
  5. Step 5: Solve for x
    x = 9,099,339,706.96/108,509.84
  6. Step 6: Final answer
    x = 83,857.28

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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.