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Finding the Fourth Proportional to 73,570.91, 101,334.49 and 56,542.59

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Solution

The fourth proportional to 73,570.91, 101,334.49 and 56,542.59 is: 77,880.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,570.91 : 101,334.49 = 56,542.59 : x
  2. Step 2: Convert to fraction form
    73,570.91/101,334.49 = 56,542.59/x
  3. Step 3: Cross multiply
    73,570.91x = 101,334.49 × 56,542.59
  4. Step 4: Simplify right side
    73,570.91x = 5,729,714,379.57
  5. Step 5: Solve for x
    x = 5,729,714,379.57/73,570.91
  6. Step 6: Final answer
    x = 77,880.17

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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.