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Finding the Fourth Proportional to 117,671.54, 176,505.78 and 28,925.81

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Solution

The fourth proportional to 117,671.54, 176,505.78 and 28,925.81 is: 43,388.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,671.54 : 176,505.78 = 28,925.81 : x
  2. Step 2: Convert to fraction form
    117,671.54/176,505.78 = 28,925.81/x
  3. Step 3: Cross multiply
    117,671.54x = 176,505.78 × 28,925.81
  4. Step 4: Simplify right side
    117,671.54x = 5,105,572,544.02
  5. Step 5: Solve for x
    x = 5,105,572,544.02/117,671.54
  6. Step 6: Final answer
    x = 43,388.34

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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.