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Finding the Fourth Proportional to 306,718.98, 460,172.37 and 157,065.23

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Solution

The fourth proportional to 306,718.98, 460,172.37 and 157,065.23 is: 235,645.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,718.98 : 460,172.37 = 157,065.23 : x
  2. Step 2: Convert to fraction form
    306,718.98/460,172.37 = 157,065.23/x
  3. Step 3: Cross multiply
    306,718.98x = 460,172.37 × 157,065.23
  4. Step 4: Simplify right side
    306,718.98x = 72,277,079,133.70
  5. Step 5: Solve for x
    x = 72,277,079,133.70/306,718.98
  6. Step 6: Final answer
    x = 235,645.93

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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.