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Finding the Fourth Proportional to 106,897.98, 147,398.49 and 79,954.14

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Solution

The fourth proportional to 106,897.98, 147,398.49 and 79,954.14 is: 110,246.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,897.98 : 147,398.49 = 79,954.14 : x
  2. Step 2: Convert to fraction form
    106,897.98/147,398.49 = 79,954.14/x
  3. Step 3: Cross multiply
    106,897.98x = 147,398.49 × 79,954.14
  4. Step 4: Simplify right side
    106,897.98x = 11,785,119,505.25
  5. Step 5: Solve for x
    x = 11,785,119,505.25/106,897.98
  6. Step 6: Final answer
    x = 110,246.42

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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.