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Finding the Fourth Proportional to 157,629.60, 236,444.40 and 143,114.40

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Solution

The fourth proportional to 157,629.60, 236,444.40 and 143,114.40 is: 214,671.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,629.60 : 236,444.40 = 143,114.40 : x
  2. Step 2: Convert to fraction form
    157,629.60/236,444.40 = 143,114.40/x
  3. Step 3: Cross multiply
    157,629.60x = 236,444.40 × 143,114.40
  4. Step 4: Simplify right side
    157,629.60x = 33,838,598,439.36
  5. Step 5: Solve for x
    x = 33,838,598,439.36/157,629.60
  6. Step 6: Final answer
    x = 214,671.60

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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.