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Finding the Fourth Proportional to 220,798.89, 304,702.44 and 120,196.89

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Solution

The fourth proportional to 220,798.89, 304,702.44 and 120,196.89 is: 165,871.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,798.89 : 304,702.44 = 120,196.89 : x
  2. Step 2: Convert to fraction form
    220,798.89/304,702.44 = 120,196.89/x
  3. Step 3: Cross multiply
    220,798.89x = 304,702.44 × 120,196.89
  4. Step 4: Simplify right side
    220,798.89x = 36,624,285,663.41
  5. Step 5: Solve for x
    x = 36,624,285,663.41/220,798.89
  6. Step 6: Final answer
    x = 165,871.69

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1.5x scale

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.