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Finding the Fourth Proportional to 220,522.50, 330,783.75 and 95,863.50

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Solution

The fourth proportional to 220,522.50, 330,783.75 and 95,863.50 is: 143,795.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,522.50 : 330,783.75 = 95,863.50 : x
  2. Step 2: Convert to fraction form
    220,522.50/330,783.75 = 95,863.50/x
  3. Step 3: Cross multiply
    220,522.50x = 330,783.75 × 95,863.50
  4. Step 4: Simplify right side
    220,522.50x = 31,710,088,018.13
  5. Step 5: Solve for x
    x = 31,710,088,018.13/220,522.50
  6. Step 6: Final answer
    x = 143,795.25

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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.