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Finding the Fourth Proportional to 70,774.56, 105,594.84 and 56,476.44

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Solution

The fourth proportional to 70,774.56, 105,594.84 and 56,476.44 is: 84,262.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,774.56 : 105,594.84 = 56,476.44 : x
  2. Step 2: Convert to fraction form
    70,774.56/105,594.84 = 56,476.44/x
  3. Step 3: Cross multiply
    70,774.56x = 105,594.84 × 56,476.44
  4. Step 4: Simplify right side
    70,774.56x = 5,963,620,645.57
  5. Step 5: Solve for x
    x = 5,963,620,645.57/70,774.56
  6. Step 6: Final answer
    x = 84,262.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.