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Finding the Fourth Proportional to 98,151.40, 147,227.10 and 67,047.40

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Solution

The fourth proportional to 98,151.40, 147,227.10 and 67,047.40 is: 100,571.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,151.40 : 147,227.10 = 67,047.40 : x
  2. Step 2: Convert to fraction form
    98,151.40/147,227.10 = 67,047.40/x
  3. Step 3: Cross multiply
    98,151.40x = 147,227.10 × 67,047.40
  4. Step 4: Simplify right side
    98,151.40x = 9,871,194,264.54
  5. Step 5: Solve for x
    x = 9,871,194,264.54/98,151.40
  6. Step 6: Final answer
    x = 100,571.10

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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.