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Finding the Fourth Proportional to 81,473.99, 112,434.08 and 49,643.01

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Solution

The fourth proportional to 81,473.99, 112,434.08 and 49,643.01 is: 68,507.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,473.99 : 112,434.08 = 49,643.01 : x
  2. Step 2: Convert to fraction form
    81,473.99/112,434.08 = 49,643.01/x
  3. Step 3: Cross multiply
    81,473.99x = 112,434.08 × 49,643.01
  4. Step 4: Simplify right side
    81,473.99x = 5,581,565,909.57
  5. Step 5: Solve for x
    x = 5,581,565,909.57/81,473.99
  6. Step 6: Final answer
    x = 68,507.34

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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.