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Finding the Fourth Proportional to 117,327.69, 161,911.51 and 63,612.54

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Solution

The fourth proportional to 117,327.69, 161,911.51 and 63,612.54 is: 87,784.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,327.69 : 161,911.51 = 63,612.54 : x
  2. Step 2: Convert to fraction form
    117,327.69/161,911.51 = 63,612.54/x
  3. Step 3: Cross multiply
    117,327.69x = 161,911.51 × 63,612.54
  4. Step 4: Simplify right side
    117,327.69x = 10,299,602,247.30
  5. Step 5: Solve for x
    x = 10,299,602,247.30/117,327.69
  6. Step 6: Final answer
    x = 87,784.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.