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Finding the Fourth Proportional to 124,607.70, 171,957.33 and 68,019.08

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Solution

The fourth proportional to 124,607.70, 171,957.33 and 68,019.08 is: 93,865.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,607.70 : 171,957.33 = 68,019.08 : x
  2. Step 2: Convert to fraction form
    124,607.70/171,957.33 = 68,019.08/x
  3. Step 3: Cross multiply
    124,607.70x = 171,957.33 × 68,019.08
  4. Step 4: Simplify right side
    124,607.70x = 11,696,378,526.07
  5. Step 5: Solve for x
    x = 11,696,378,526.07/124,607.70
  6. Step 6: Final answer
    x = 93,865.62

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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.