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Finding the Fourth Proportional to 151,001.40, 208,383.34 and 83,018.86

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Solution

The fourth proportional to 151,001.40, 208,383.34 and 83,018.86 is: 114,566.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,001.40 : 208,383.34 = 83,018.86 : x
  2. Step 2: Convert to fraction form
    151,001.40/208,383.34 = 83,018.86/x
  3. Step 3: Cross multiply
    151,001.40x = 208,383.34 × 83,018.86
  4. Step 4: Simplify right side
    151,001.40x = 17,299,747,329.79
  5. Step 5: Solve for x
    x = 17,299,747,329.79/151,001.40
  6. Step 6: Final answer
    x = 114,566.80

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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.