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Finding the Fourth Proportional to 158,040.61, 237,054.57 and 87,103.87

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Solution

The fourth proportional to 158,040.61, 237,054.57 and 87,103.87 is: 130,652.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,040.61 : 237,054.57 = 87,103.87 : x
  2. Step 2: Convert to fraction form
    158,040.61/237,054.57 = 87,103.87/x
  3. Step 3: Cross multiply
    158,040.61x = 237,054.57 × 87,103.87
  4. Step 4: Simplify right side
    158,040.61x = 20,648,370,448.19
  5. Step 5: Solve for x
    x = 20,648,370,448.19/158,040.61
  6. Step 6: Final answer
    x = 130,652.31

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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.