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Finding the Fourth Proportional to 108,772.62, 163,224.63 and 38,646.60

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Solution

The fourth proportional to 108,772.62, 163,224.63 and 38,646.60 is: 57,993.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,772.62 : 163,224.63 = 38,646.60 : x
  2. Step 2: Convert to fraction form
    108,772.62/163,224.63 = 38,646.60/x
  3. Step 3: Cross multiply
    108,772.62x = 163,224.63 × 38,646.60
  4. Step 4: Simplify right side
    108,772.62x = 6,308,076,985.76
  5. Step 5: Solve for x
    x = 6,308,076,985.76/108,772.62
  6. Step 6: Final answer
    x = 57,993.24

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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.