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Finding the Fourth Proportional to 191,797.17, 287,707.27 and 58,678.58

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Solution

The fourth proportional to 191,797.17, 287,707.27 and 58,678.58 is: 88,021.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,797.17 : 287,707.27 = 58,678.58 : x
  2. Step 2: Convert to fraction form
    191,797.17/287,707.27 = 58,678.58/x
  3. Step 3: Cross multiply
    191,797.17x = 287,707.27 × 58,678.58
  4. Step 4: Simplify right side
    191,797.17x = 16,882,254,059.28
  5. Step 5: Solve for x
    x = 16,882,254,059.28/191,797.17
  6. Step 6: Final answer
    x = 88,021.39

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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.