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Finding the Fourth Proportional to 157,671.51, 236,509.02 and 52,490.31

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Solution

The fourth proportional to 157,671.51, 236,509.02 and 52,490.31 is: 78,736.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,671.51 : 236,509.02 = 52,490.31 : x
  2. Step 2: Convert to fraction form
    157,671.51/236,509.02 = 52,490.31/x
  3. Step 3: Cross multiply
    157,671.51x = 236,509.02 × 52,490.31
  4. Step 4: Simplify right side
    157,671.51x = 12,414,431,777.60
  5. Step 5: Solve for x
    x = 12,414,431,777.60/157,671.51
  6. Step 6: Final answer
    x = 78,736.05

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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.