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Finding the Fourth Proportional to 163,795.80, 245,693.70 and 111,307.80

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Solution

The fourth proportional to 163,795.80, 245,693.70 and 111,307.80 is: 166,961.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,795.80 : 245,693.70 = 111,307.80 : x
  2. Step 2: Convert to fraction form
    163,795.80/245,693.70 = 111,307.80/x
  3. Step 3: Cross multiply
    163,795.80x = 245,693.70 × 111,307.80
  4. Step 4: Simplify right side
    163,795.80x = 27,347,625,220.86
  5. Step 5: Solve for x
    x = 27,347,625,220.86/163,795.80
  6. Step 6: Final answer
    x = 166,961.70

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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.