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Finding the Fourth Proportional to 70,170.56, 96,878.29 and 45,664.72

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Solution

The fourth proportional to 70,170.56, 96,878.29 and 45,664.72 is: 63,045.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,170.56 : 96,878.29 = 45,664.72 : x
  2. Step 2: Convert to fraction form
    70,170.56/96,878.29 = 45,664.72/x
  3. Step 3: Cross multiply
    70,170.56x = 96,878.29 × 45,664.72
  4. Step 4: Simplify right side
    70,170.56x = 4,423,919,860.23
  5. Step 5: Solve for x
    x = 4,423,919,860.23/70,170.56
  6. Step 6: Final answer
    x = 63,045.24

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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.