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Finding the Fourth Proportional to 108,915.77, 163,334.99 and 31,957.29

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Solution

The fourth proportional to 108,915.77, 163,334.99 and 31,957.29 is: 47,924.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,915.77 : 163,334.99 = 31,957.29 : x
  2. Step 2: Convert to fraction form
    108,915.77/163,334.99 = 31,957.29/x
  3. Step 3: Cross multiply
    108,915.77x = 163,334.99 × 31,957.29
  4. Step 4: Simplify right side
    108,915.77x = 5,219,742,825.90
  5. Step 5: Solve for x
    x = 5,219,742,825.90/108,915.77
  6. Step 6: Final answer
    x = 47,924.58

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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.