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Finding the Fourth Proportional to 146,603.80, 219,905.70 and 111,611.80

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Solution

The fourth proportional to 146,603.80, 219,905.70 and 111,611.80 is: 167,417.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,603.80 : 219,905.70 = 111,611.80 : x
  2. Step 2: Convert to fraction form
    146,603.80/219,905.70 = 111,611.80/x
  3. Step 3: Cross multiply
    146,603.80x = 219,905.70 × 111,611.80
  4. Step 4: Simplify right side
    146,603.80x = 24,544,071,007.26
  5. Step 5: Solve for x
    x = 24,544,071,007.26/146,603.80
  6. Step 6: Final answer
    x = 167,417.70

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1.5x scale

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.