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Finding the Fourth Proportional to 158,368.81, 237,588.24 and 87,254.82

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Solution

The fourth proportional to 158,368.81, 237,588.24 and 87,254.82 is: 130,901.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,368.81 : 237,588.24 = 87,254.82 : x
  2. Step 2: Convert to fraction form
    158,368.81/237,588.24 = 87,254.82/x
  3. Step 3: Cross multiply
    158,368.81x = 237,588.24 × 87,254.82
  4. Step 4: Simplify right side
    158,368.81x = 20,730,720,333.48
  5. Step 5: Solve for x
    x = 20,730,720,333.48/158,368.81
  6. Step 6: Final answer
    x = 130,901.54

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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.