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Finding the Fourth Proportional to 117,673.86, 176,455.34 and 42,741.16

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Solution

The fourth proportional to 117,673.86, 176,455.34 and 42,741.16 is: 64,091.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,673.86 : 176,455.34 = 42,741.16 : x
  2. Step 2: Convert to fraction form
    117,673.86/176,455.34 = 42,741.16/x
  3. Step 3: Cross multiply
    117,673.86x = 176,455.34 × 42,741.16
  4. Step 4: Simplify right side
    117,673.86x = 7,541,905,919.79
  5. Step 5: Solve for x
    x = 7,541,905,919.79/117,673.86
  6. Step 6: Final answer
    x = 64,091.60

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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.