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Finding the Fourth Proportional to 169,420.70, 233,797.02 and 93,969.20

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Solution

The fourth proportional to 169,420.70, 233,797.02 and 93,969.20 is: 129,675.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,420.70 : 233,797.02 = 93,969.20 : x
  2. Step 2: Convert to fraction form
    169,420.70/233,797.02 = 93,969.20/x
  3. Step 3: Cross multiply
    169,420.70x = 233,797.02 × 93,969.20
  4. Step 4: Simplify right side
    169,420.70x = 21,969,718,931.78
  5. Step 5: Solve for x
    x = 21,969,718,931.78/169,420.70
  6. Step 6: Final answer
    x = 129,675.53

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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.