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Finding the Fourth Proportional to 75,619.20, 106,022.40 and 75,619.20

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Solution

The fourth proportional to 75,619.20, 106,022.40 and 75,619.20 is: 106,022.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,619.20 : 106,022.40 = 75,619.20 : x
  2. Step 2: Convert to fraction form
    75,619.20/106,022.40 = 75,619.20/x
  3. Step 3: Cross multiply
    75,619.20x = 106,022.40 × 75,619.20
  4. Step 4: Simplify right side
    75,619.20x = 8,017,329,070.08
  5. Step 5: Solve for x
    x = 8,017,329,070.08/75,619.20
  6. Step 6: Final answer
    x = 106,022.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.