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Finding the Fourth Proportional to 70,178.56, 96,852.99 and 38,352.20

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Solution

The fourth proportional to 70,178.56, 96,852.99 and 38,352.20 is: 52,929.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,178.56 : 96,852.99 = 38,352.20 : x
  2. Step 2: Convert to fraction form
    70,178.56/96,852.99 = 38,352.20/x
  3. Step 3: Cross multiply
    70,178.56x = 96,852.99 × 38,352.20
  4. Step 4: Simplify right side
    70,178.56x = 3,714,525,243.08
  5. Step 5: Solve for x
    x = 3,714,525,243.08/70,178.56
  6. Step 6: Final answer
    x = 52,929.63

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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.