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Finding the Fourth Proportional to 106,967.68, 147,647.40 and 69,244.48

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Solution

The fourth proportional to 106,967.68, 147,647.40 and 69,244.48 is: 95,578.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,967.68 : 147,647.40 = 69,244.48 : x
  2. Step 2: Convert to fraction form
    106,967.68/147,647.40 = 69,244.48/x
  3. Step 3: Cross multiply
    106,967.68x = 147,647.40 × 69,244.48
  4. Step 4: Simplify right side
    106,967.68x = 10,223,767,436.35
  5. Step 5: Solve for x
    x = 10,223,767,436.35/106,967.68
  6. Step 6: Final answer
    x = 95,578.10

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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.