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Finding the Fourth Proportional to 72,053.66, 107,859.02 and 61,424.84

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Solution

The fourth proportional to 72,053.66, 107,859.02 and 61,424.84 is: 91,948.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,053.66 : 107,859.02 = 61,424.84 : x
  2. Step 2: Convert to fraction form
    72,053.66/107,859.02 = 61,424.84/x
  3. Step 3: Cross multiply
    72,053.66x = 107,859.02 × 61,424.84
  4. Step 4: Simplify right side
    72,053.66x = 6,625,223,046.06
  5. Step 5: Solve for x
    x = 6,625,223,046.06/72,053.66
  6. Step 6: Final answer
    x = 91,948.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.