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Finding the Fourth Proportional to 183,871.39, 253,155.95 and 156,905.68

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Solution

The fourth proportional to 183,871.39, 253,155.95 and 156,905.68 is: 216,029.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,871.39 : 253,155.95 = 156,905.68 : x
  2. Step 2: Convert to fraction form
    183,871.39/253,155.95 = 156,905.68/x
  3. Step 3: Cross multiply
    183,871.39x = 253,155.95 × 156,905.68
  4. Step 4: Simplify right side
    183,871.39x = 39,721,606,480.80
  5. Step 5: Solve for x
    x = 39,721,606,480.80/183,871.39
  6. Step 6: Final answer
    x = 216,029.29

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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.