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Finding the Fourth Proportional to 118,230.68, 176,929.94 and 73,878.32

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Solution

The fourth proportional to 118,230.68, 176,929.94 and 73,878.32 is: 110,557.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,230.68 : 176,929.94 = 73,878.32 : x
  2. Step 2: Convert to fraction form
    118,230.68/176,929.94 = 73,878.32/x
  3. Step 3: Cross multiply
    118,230.68x = 176,929.94 × 73,878.32
  4. Step 4: Simplify right side
    118,230.68x = 13,071,286,724.90
  5. Step 5: Solve for x
    x = 13,071,286,724.90/118,230.68
  6. Step 6: Final answer
    x = 110,557.49

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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.