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Finding the Fourth Proportional to 74,059.62, 102,202.12 and 40,068.00

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Solution

The fourth proportional to 74,059.62, 102,202.12 and 40,068.00 is: 55,293.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,059.62 : 102,202.12 = 40,068.00 : x
  2. Step 2: Convert to fraction form
    74,059.62/102,202.12 = 40,068.00/x
  3. Step 3: Cross multiply
    74,059.62x = 102,202.12 × 40,068.00
  4. Step 4: Simplify right side
    74,059.62x = 4,095,034,856.37
  5. Step 5: Solve for x
    x = 4,095,034,856.37/74,059.62
  6. Step 6: Final answer
    x = 55,293.76

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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.