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Finding the Fourth Proportional to 158,866.98, 219,237.99 and 87,248.52

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Solution

The fourth proportional to 158,866.98, 219,237.99 and 87,248.52 is: 120,403.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,866.98 : 219,237.99 = 87,248.52 : x
  2. Step 2: Convert to fraction form
    158,866.98/219,237.99 = 87,248.52/x
  3. Step 3: Cross multiply
    158,866.98x = 219,237.99 × 87,248.52
  4. Step 4: Simplify right side
    158,866.98x = 19,128,190,155.27
  5. Step 5: Solve for x
    x = 19,128,190,155.27/158,866.98
  6. Step 6: Final answer
    x = 120,403.81

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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.