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Finding the Fourth Proportional to 73,002.87, 100,777.77 and 42,784.20

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Solution

The fourth proportional to 73,002.87, 100,777.77 and 42,784.20 is: 59,062.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,002.87 : 100,777.77 = 42,784.20 : x
  2. Step 2: Convert to fraction form
    73,002.87/100,777.77 = 42,784.20/x
  3. Step 3: Cross multiply
    73,002.87x = 100,777.77 × 42,784.20
  4. Step 4: Simplify right side
    73,002.87x = 4,311,696,267.23
  5. Step 5: Solve for x
    x = 4,311,696,267.23/73,002.87
  6. Step 6: Final answer
    x = 59,062.01

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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.