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Finding the Fourth Proportional to 187,366.57, 281,047.25 and 45,210.66

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Solution

The fourth proportional to 187,366.57, 281,047.25 and 45,210.66 is: 67,815.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,366.57 : 281,047.25 = 45,210.66 : x
  2. Step 2: Convert to fraction form
    187,366.57/281,047.25 = 45,210.66/x
  3. Step 3: Cross multiply
    187,366.57x = 281,047.25 × 45,210.66
  4. Step 4: Simplify right side
    187,366.57x = 12,706,330,032.40
  5. Step 5: Solve for x
    x = 12,706,330,032.40/187,366.57
  6. Step 6: Final answer
    x = 67,815.35

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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.