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Finding the Fourth Proportional to 74,973.71, 112,460.54 and 30,015.29

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Solution

The fourth proportional to 74,973.71, 112,460.54 and 30,015.29 is: 45,022.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,973.71 : 112,460.54 = 30,015.29 : x
  2. Step 2: Convert to fraction form
    74,973.71/112,460.54 = 30,015.29/x
  3. Step 3: Cross multiply
    74,973.71x = 112,460.54 × 30,015.29
  4. Step 4: Simplify right side
    74,973.71x = 3,375,535,852.73
  5. Step 5: Solve for x
    x = 3,375,535,852.73/74,973.71
  6. Step 6: Final answer
    x = 45,022.93

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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.