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Finding the Fourth Proportional to 101,243.34, 139,715.16 and 55,924.26

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Solution

The fourth proportional to 101,243.34, 139,715.16 and 55,924.26 is: 77,175.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,243.34 : 139,715.16 = 55,924.26 : x
  2. Step 2: Convert to fraction form
    101,243.34/139,715.16 = 55,924.26/x
  3. Step 3: Cross multiply
    101,243.34x = 139,715.16 × 55,924.26
  4. Step 4: Simplify right side
    101,243.34x = 7,813,466,933.78
  5. Step 5: Solve for x
    x = 7,813,466,933.78/101,243.34
  6. Step 6: Final answer
    x = 77,175.12

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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.