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Finding the Fourth Proportional to 97,694.40, 146,512.80 and 38,510.40

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Solution

The fourth proportional to 97,694.40, 146,512.80 and 38,510.40 is: 57,754.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,694.40 : 146,512.80 = 38,510.40 : x
  2. Step 2: Convert to fraction form
    97,694.40/146,512.80 = 38,510.40/x
  3. Step 3: Cross multiply
    97,694.40x = 146,512.80 × 38,510.40
  4. Step 4: Simplify right side
    97,694.40x = 5,642,266,533.12
  5. Step 5: Solve for x
    x = 5,642,266,533.12/97,694.40
  6. Step 6: Final answer
    x = 57,754.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.