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Finding the Fourth Proportional to 73,998.50, 102,117.93 and 40,464.50

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Solution

The fourth proportional to 73,998.50, 102,117.93 and 40,464.50 is: 55,841.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,998.50 : 102,117.93 = 40,464.50 : x
  2. Step 2: Convert to fraction form
    73,998.50/102,117.93 = 40,464.50/x
  3. Step 3: Cross multiply
    73,998.50x = 102,117.93 × 40,464.50
  4. Step 4: Simplify right side
    73,998.50x = 4,132,150,978.49
  5. Step 5: Solve for x
    x = 4,132,150,978.49/73,998.50
  6. Step 6: Final answer
    x = 55,841.01

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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.