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Finding the Fourth Proportional to 127,324, 191,006.58 and 43,089.28

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Solution

The fourth proportional to 127,324, 191,006.58 and 43,089.28 is: 64,640.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,324 : 191,006.58 = 43,089.28 : x
  2. Step 2: Convert to fraction form
    127,324/191,006.58 = 43,089.28/x
  3. Step 3: Cross multiply
    127,324x = 191,006.58 × 43,089.28
  4. Step 4: Simplify right side
    127,324x = 8,230,336,007.46
  5. Step 5: Solve for x
    x = 8,230,336,007.46/127,324
  6. Step 6: Final answer
    x = 64,640.88

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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.