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Finding the Fourth Proportional to 214,898.60, 322,264.92 and 72,706.16

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Solution

The fourth proportional to 214,898.60, 322,264.92 and 72,706.16 is: 109,031.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,898.60 : 322,264.92 = 72,706.16 : x
  2. Step 2: Convert to fraction form
    214,898.60/322,264.92 = 72,706.16/x
  3. Step 3: Cross multiply
    214,898.60x = 322,264.92 × 72,706.16
  4. Step 4: Simplify right side
    214,898.60x = 23,430,644,835.91
  5. Step 5: Solve for x
    x = 23,430,644,835.91/214,898.60
  6. Step 6: Final answer
    x = 109,031.17

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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.