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Finding the Fourth Proportional to 158,937.93, 219,333.43 and 87,316.41

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Solution

The fourth proportional to 158,937.93, 219,333.43 and 87,316.41 is: 120,496.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,937.93 : 219,333.43 = 87,316.41 : x
  2. Step 2: Convert to fraction form
    158,937.93/219,333.43 = 87,316.41/x
  3. Step 3: Cross multiply
    158,937.93x = 219,333.43 × 87,316.41
  4. Step 4: Simplify right side
    158,937.93x = 19,151,407,264.00
  5. Step 5: Solve for x
    x = 19,151,407,264.00/158,937.93
  6. Step 6: Final answer
    x = 120,496.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.