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Finding the Fourth Proportional to 226,970.90, 340,456.35 and 156,986.90

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Solution

The fourth proportional to 226,970.90, 340,456.35 and 156,986.90 is: 235,480.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,970.90 : 340,456.35 = 156,986.90 : x
  2. Step 2: Convert to fraction form
    226,970.90/340,456.35 = 156,986.90/x
  3. Step 3: Cross multiply
    226,970.90x = 340,456.35 × 156,986.90
  4. Step 4: Simplify right side
    226,970.90x = 53,447,186,971.82
  5. Step 5: Solve for x
    x = 53,447,186,971.82/226,970.90
  6. Step 6: Final answer
    x = 235,480.35

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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.