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Finding the Fourth Proportional to 77,549.94, 107,018.94 and 43,558.48

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Solution

The fourth proportional to 77,549.94, 107,018.94 and 43,558.48 is: 60,110.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,549.94 : 107,018.94 = 43,558.48 : x
  2. Step 2: Convert to fraction form
    77,549.94/107,018.94 = 43,558.48/x
  3. Step 3: Cross multiply
    77,549.94x = 107,018.94 × 43,558.48
  4. Step 4: Simplify right side
    77,549.94x = 4,661,582,357.61
  5. Step 5: Solve for x
    x = 4,661,582,357.61/77,549.94
  6. Step 6: Final answer
    x = 60,110.72

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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.