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Finding the Fourth Proportional to 260,663.80, 359,801.58 and 153,228.64

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Solution

The fourth proportional to 260,663.80, 359,801.58 and 153,228.64 is: 211,505.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,663.80 : 359,801.58 = 153,228.64 : x
  2. Step 2: Convert to fraction form
    260,663.80/359,801.58 = 153,228.64/x
  3. Step 3: Cross multiply
    260,663.80x = 359,801.58 × 153,228.64
  4. Step 4: Simplify right side
    260,663.80x = 55,131,906,773.25
  5. Step 5: Solve for x
    x = 55,131,906,773.25/260,663.80
  6. Step 6: Final answer
    x = 211,505.80

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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.