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Finding the Fourth Proportional to 162,989.76, 224,927.91 and 99,333.48

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Solution

The fourth proportional to 162,989.76, 224,927.91 and 99,333.48 is: 137,081.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,989.76 : 224,927.91 = 99,333.48 : x
  2. Step 2: Convert to fraction form
    162,989.76/224,927.91 = 99,333.48/x
  3. Step 3: Cross multiply
    162,989.76x = 224,927.91 × 99,333.48
  4. Step 4: Simplify right side
    162,989.76x = 22,342,872,049.43
  5. Step 5: Solve for x
    x = 22,342,872,049.43/162,989.76
  6. Step 6: Final answer
    x = 137,081.45

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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.