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Finding the Fourth Proportional to 79,709.03, 109,994.91 and 45,693.13

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Solution

The fourth proportional to 79,709.03, 109,994.91 and 45,693.13 is: 63,054.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,709.03 : 109,994.91 = 45,693.13 : x
  2. Step 2: Convert to fraction form
    79,709.03/109,994.91 = 45,693.13/x
  3. Step 3: Cross multiply
    79,709.03x = 109,994.91 × 45,693.13
  4. Step 4: Simplify right side
    79,709.03x = 5,026,011,738.90
  5. Step 5: Solve for x
    x = 5,026,011,738.90/79,709.03
  6. Step 6: Final answer
    x = 63,054.48

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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.