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Finding the Fourth Proportional to 118,802.32, 178,229.58 and 39,914.44

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Solution

The fourth proportional to 118,802.32, 178,229.58 and 39,914.44 is: 59,880.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,802.32 : 178,229.58 = 39,914.44 : x
  2. Step 2: Convert to fraction form
    118,802.32/178,229.58 = 39,914.44/x
  3. Step 3: Cross multiply
    118,802.32x = 178,229.58 × 39,914.44
  4. Step 4: Simplify right side
    118,802.32x = 7,113,933,877.14
  5. Step 5: Solve for x
    x = 7,113,933,877.14/118,802.32
  6. Step 6: Final answer
    x = 59,880.43

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1.5x scale

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.