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Finding the Fourth Proportional to 157,058.66, 235,706.40 and 115,046.39

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Solution

The fourth proportional to 157,058.66, 235,706.40 and 115,046.39 is: 172,656.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,058.66 : 235,706.40 = 115,046.39 : x
  2. Step 2: Convert to fraction form
    157,058.66/235,706.40 = 115,046.39/x
  3. Step 3: Cross multiply
    157,058.66x = 235,706.40 × 115,046.39
  4. Step 4: Simplify right side
    157,058.66x = 27,117,170,685.59
  5. Step 5: Solve for x
    x = 27,117,170,685.59/157,058.66
  6. Step 6: Final answer
    x = 172,656.32

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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.