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Finding the Fourth Proportional to 202,537.04, 279,496.20 and 111,901.68

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Solution

The fourth proportional to 202,537.04, 279,496.20 and 111,901.68 is: 154,421.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,537.04 : 279,496.20 = 111,901.68 : x
  2. Step 2: Convert to fraction form
    202,537.04/279,496.20 = 111,901.68/x
  3. Step 3: Cross multiply
    202,537.04x = 279,496.20 × 111,901.68
  4. Step 4: Simplify right side
    202,537.04x = 31,276,094,333.62
  5. Step 5: Solve for x
    x = 31,276,094,333.62/202,537.04
  6. Step 6: Final answer
    x = 154,421.60

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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.