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Finding the Fourth Proportional to 167,981.90, 235,485.70 and 167,981.90

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Solution

The fourth proportional to 167,981.90, 235,485.70 and 167,981.90 is: 235,485.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,981.90 : 235,485.70 = 167,981.90 : x
  2. Step 2: Convert to fraction form
    167,981.90/235,485.70 = 167,981.90/x
  3. Step 3: Cross multiply
    167,981.90x = 235,485.70 × 167,981.90
  4. Step 4: Simplify right side
    167,981.90x = 39,557,335,308.83
  5. Step 5: Solve for x
    x = 39,557,335,308.83/167,981.90
  6. Step 6: Final answer
    x = 235,485.70

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.