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Finding the Fourth Proportional to 140,470.62, 210,706.15 and 57,364.62

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Solution

The fourth proportional to 140,470.62, 210,706.15 and 57,364.62 is: 86,047.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,470.62 : 210,706.15 = 57,364.62 : x
  2. Step 2: Convert to fraction form
    140,470.62/210,706.15 = 57,364.62/x
  3. Step 3: Cross multiply
    140,470.62x = 210,706.15 × 57,364.62
  4. Step 4: Simplify right side
    140,470.62x = 12,087,078,226.41
  5. Step 5: Solve for x
    x = 12,087,078,226.41/140,470.62
  6. Step 6: Final answer
    x = 86,047.02

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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.