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Finding the Fourth Proportional to 199,677.60, 299,639.52 and 93,042.72

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Solution

The fourth proportional to 199,677.60, 299,639.52 and 93,042.72 is: 139,621.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,677.60 : 299,639.52 = 93,042.72 : x
  2. Step 2: Convert to fraction form
    199,677.60/299,639.52 = 93,042.72/x
  3. Step 3: Cross multiply
    199,677.60x = 299,639.52 × 93,042.72
  4. Step 4: Simplify right side
    199,677.60x = 27,879,275,960.29
  5. Step 5: Solve for x
    x = 27,879,275,960.29/199,677.60
  6. Step 6: Final answer
    x = 139,621.45

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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.