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Finding the Fourth Proportional to 73,471.36, 101,390.88 and 43,258

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Solution

The fourth proportional to 73,471.36, 101,390.88 and 43,258 is: 59,696.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,471.36 : 101,390.88 = 43,258 : x
  2. Step 2: Convert to fraction form
    73,471.36/101,390.88 = 43,258/x
  3. Step 3: Cross multiply
    73,471.36x = 101,390.88 × 43,258
  4. Step 4: Simplify right side
    73,471.36x = 4,385,966,687.04
  5. Step 5: Solve for x
    x = 4,385,966,687.04/73,471.36
  6. Step 6: Final answer
    x = 59,696.28

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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.