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Finding the Fourth Proportional to 73,894.40, 101,974.88 and 42,065.36

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Solution

The fourth proportional to 73,894.40, 101,974.88 and 42,065.36 is: 58,050.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,894.40 : 101,974.88 = 42,065.36 : x
  2. Step 2: Convert to fraction form
    73,894.40/101,974.88 = 42,065.36/x
  3. Step 3: Cross multiply
    73,894.40x = 101,974.88 × 42,065.36
  4. Step 4: Simplify right side
    73,894.40x = 4,289,610,038.16
  5. Step 5: Solve for x
    x = 4,289,610,038.16/73,894.40
  6. Step 6: Final answer
    x = 58,050.54

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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.