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Finding the Fourth Proportional to 151,700.75, 209,347.13 and 84,632.75

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Solution

The fourth proportional to 151,700.75, 209,347.13 and 84,632.75 is: 116,793.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,700.75 : 209,347.13 = 84,632.75 : x
  2. Step 2: Convert to fraction form
    151,700.75/209,347.13 = 84,632.75/x
  3. Step 3: Cross multiply
    151,700.75x = 209,347.13 × 84,632.75
  4. Step 4: Simplify right side
    151,700.75x = 17,717,623,316.51
  5. Step 5: Solve for x
    x = 17,717,623,316.51/151,700.75
  6. Step 6: Final answer
    x = 116,793.25

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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.