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Finding the Fourth Proportional to 79,092.72, 109,034.44 and 56,392.34

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Solution

The fourth proportional to 79,092.72, 109,034.44 and 56,392.34 is: 77,740.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,092.72 : 109,034.44 = 56,392.34 : x
  2. Step 2: Convert to fraction form
    79,092.72/109,034.44 = 56,392.34/x
  3. Step 3: Cross multiply
    79,092.72x = 109,034.44 × 56,392.34
  4. Step 4: Simplify right side
    79,092.72x = 6,148,706,526.04
  5. Step 5: Solve for x
    x = 6,148,706,526.04/79,092.72
  6. Step 6: Final answer
    x = 77,740.49

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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.