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Finding the Fourth Proportional to 142,736.40, 214,104.60 and 101,264.40

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Solution

The fourth proportional to 142,736.40, 214,104.60 and 101,264.40 is: 151,896.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,736.40 : 214,104.60 = 101,264.40 : x
  2. Step 2: Convert to fraction form
    142,736.40/214,104.60 = 101,264.40/x
  3. Step 3: Cross multiply
    142,736.40x = 214,104.60 × 101,264.40
  4. Step 4: Simplify right side
    142,736.40x = 21,681,173,856.24
  5. Step 5: Solve for x
    x = 21,681,173,856.24/142,736.40
  6. Step 6: Final answer
    x = 151,896.60

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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.