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Finding the Fourth Proportional to 108,878.12, 163,340.51 and 37,803

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Solution

The fourth proportional to 108,878.12, 163,340.51 and 37,803 is: 56,712.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,878.12 : 163,340.51 = 37,803 : x
  2. Step 2: Convert to fraction form
    108,878.12/163,340.51 = 37,803/x
  3. Step 3: Cross multiply
    108,878.12x = 163,340.51 × 37,803
  4. Step 4: Simplify right side
    108,878.12x = 6,174,761,110.52
  5. Step 5: Solve for x
    x = 6,174,761,110.52/108,878.12
  6. Step 6: Final answer
    x = 56,712.60

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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.