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Finding the Fourth Proportional to 115,222.50, 159,007.05 and 62,230.50

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Solution

The fourth proportional to 115,222.50, 159,007.05 and 62,230.50 is: 85,878.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,222.50 : 159,007.05 = 62,230.50 : x
  2. Step 2: Convert to fraction form
    115,222.50/159,007.05 = 62,230.50/x
  3. Step 3: Cross multiply
    115,222.50x = 159,007.05 × 62,230.50
  4. Step 4: Simplify right side
    115,222.50x = 9,895,088,225.03
  5. Step 5: Solve for x
    x = 9,895,088,225.03/115,222.50
  6. Step 6: Final answer
    x = 85,878.09

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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.