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Finding the Fourth Proportional to 124,358.33, 171,744.74 and 85,696.67

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Solution

The fourth proportional to 124,358.33, 171,744.74 and 85,696.67 is: 118,351.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,358.33 : 171,744.74 = 85,696.67 : x
  2. Step 2: Convert to fraction form
    124,358.33/171,744.74 = 85,696.67/x
  3. Step 3: Cross multiply
    124,358.33x = 171,744.74 × 85,696.67
  4. Step 4: Simplify right side
    124,358.33x = 14,717,952,951.62
  5. Step 5: Solve for x
    x = 14,717,952,951.62/124,358.33
  6. Step 6: Final answer
    x = 118,351.17

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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.