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Finding the Fourth Proportional to 160,712.80, 240,838.80 and 118,261.60

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Solution

The fourth proportional to 160,712.80, 240,838.80 and 118,261.60 is: 177,222.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,712.80 : 240,838.80 = 118,261.60 : x
  2. Step 2: Convert to fraction form
    160,712.80/240,838.80 = 118,261.60/x
  3. Step 3: Cross multiply
    160,712.80x = 240,838.80 × 118,261.60
  4. Step 4: Simplify right side
    160,712.80x = 28,481,981,830.08
  5. Step 5: Solve for x
    x = 28,481,981,830.08/160,712.80
  6. Step 6: Final answer
    x = 177,222.86

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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.