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Finding the Fourth Proportional to 266,042.54, 399,203.94 and 153,801.58

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Solution

The fourth proportional to 266,042.54, 399,203.94 and 153,801.58 is: 230,783.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,042.54 : 399,203.94 = 153,801.58 : x
  2. Step 2: Convert to fraction form
    266,042.54/399,203.94 = 153,801.58/x
  3. Step 3: Cross multiply
    266,042.54x = 399,203.94 × 153,801.58
  4. Step 4: Simplify right side
    266,042.54x = 61,398,195,945.22
  5. Step 5: Solve for x
    x = 61,398,195,945.22/266,042.54
  6. Step 6: Final answer
    x = 230,783.38

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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.