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Finding the Fourth Proportional to 77,410.66, 106,859.37 and 52,294.18

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Solution

The fourth proportional to 77,410.66, 106,859.37 and 52,294.18 is: 72,188.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,410.66 : 106,859.37 = 52,294.18 : x
  2. Step 2: Convert to fraction form
    77,410.66/106,859.37 = 52,294.18/x
  3. Step 3: Cross multiply
    77,410.66x = 106,859.37 × 52,294.18
  4. Step 4: Simplify right side
    77,410.66x = 5,588,123,129.47
  5. Step 5: Solve for x
    x = 5,588,123,129.47/77,410.66
  6. Step 6: Final answer
    x = 72,188.03

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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.