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Finding the Fourth Proportional to 151,693.50, 209,337.12 and 84,625.50

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Solution

The fourth proportional to 151,693.50, 209,337.12 and 84,625.50 is: 116,783.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,693.50 : 209,337.12 = 84,625.50 : x
  2. Step 2: Convert to fraction form
    151,693.50/209,337.12 = 84,625.50/x
  3. Step 3: Cross multiply
    151,693.50x = 209,337.12 × 84,625.50
  4. Step 4: Simplify right side
    151,693.50x = 17,715,258,448.56
  5. Step 5: Solve for x
    x = 17,715,258,448.56/151,693.50
  6. Step 6: Final answer
    x = 116,783.24

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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.