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Finding the Fourth Proportional to 101,245.49, 139,718.22 and 55,926.59

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Solution

The fourth proportional to 101,245.49, 139,718.22 and 55,926.59 is: 77,178.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,245.49 : 139,718.22 = 55,926.59 : x
  2. Step 2: Convert to fraction form
    101,245.49/139,718.22 = 55,926.59/x
  3. Step 3: Cross multiply
    101,245.49x = 139,718.22 × 55,926.59
  4. Step 4: Simplify right side
    101,245.49x = 7,813,963,605.47
  5. Step 5: Solve for x
    x = 7,813,963,605.47/101,245.49
  6. Step 6: Final answer
    x = 77,178.39

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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.