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Finding the Fourth Proportional to 74,793.95, 103,216.14 and 40,802.97

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Solution

The fourth proportional to 74,793.95, 103,216.14 and 40,802.97 is: 56,308.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,793.95 : 103,216.14 = 40,802.97 : x
  2. Step 2: Convert to fraction form
    74,793.95/103,216.14 = 40,802.97/x
  3. Step 3: Cross multiply
    74,793.95x = 103,216.14 × 40,802.97
  4. Step 4: Simplify right side
    74,793.95x = 4,211,525,451.00
  5. Step 5: Solve for x
    x = 4,211,525,451.00/74,793.95
  6. Step 6: Final answer
    x = 56,308.37

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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.