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Finding the Fourth Proportional to 70,860.80, 106,947.32 and 70,860.80

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Solution

The fourth proportional to 70,860.80, 106,947.32 and 70,860.80 is: 106,947.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,860.80 : 106,947.32 = 70,860.80 : x
  2. Step 2: Convert to fraction form
    70,860.80/106,947.32 = 70,860.80/x
  3. Step 3: Cross multiply
    70,860.80x = 106,947.32 × 70,860.80
  4. Step 4: Simplify right side
    70,860.80x = 7,578,372,653.06
  5. Step 5: Solve for x
    x = 7,578,372,653.06/70,860.80
  6. Step 6: Final answer
    x = 106,947.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.