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Finding the Fourth Proportional to 142,903.52, 214,355.28 and 49,410.08

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Solution

The fourth proportional to 142,903.52, 214,355.28 and 49,410.08 is: 74,115.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,903.52 : 214,355.28 = 49,410.08 : x
  2. Step 2: Convert to fraction form
    142,903.52/214,355.28 = 49,410.08/x
  3. Step 3: Cross multiply
    142,903.52x = 214,355.28 × 49,410.08
  4. Step 4: Simplify right side
    142,903.52x = 10,591,311,533.22
  5. Step 5: Solve for x
    x = 10,591,311,533.22/142,903.52
  6. Step 6: Final answer
    x = 74,115.12

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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.