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Finding the Fourth Proportional to 74,063.73, 102,205.89 and 42,230.73

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Solution

The fourth proportional to 74,063.73, 102,205.89 and 42,230.73 is: 58,277.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,063.73 : 102,205.89 = 42,230.73 : x
  2. Step 2: Convert to fraction form
    74,063.73/102,205.89 = 42,230.73/x
  3. Step 3: Cross multiply
    74,063.73x = 102,205.89 × 42,230.73
  4. Step 4: Simplify right side
    74,063.73x = 4,316,229,345.00
  5. Step 5: Solve for x
    x = 4,316,229,345.00/74,063.73
  6. Step 6: Final answer
    x = 58,277.23

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1.5x scale

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.