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Finding the Fourth Proportional to 117,484.80, 162,124.65 and 63,768.66

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Solution

The fourth proportional to 117,484.80, 162,124.65 and 63,768.66 is: 87,998.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,484.80 : 162,124.65 = 63,768.66 : x
  2. Step 2: Convert to fraction form
    117,484.80/162,124.65 = 63,768.66/x
  3. Step 3: Cross multiply
    117,484.80x = 162,124.65 × 63,768.66
  4. Step 4: Simplify right side
    117,484.80x = 10,338,471,683.47
  5. Step 5: Solve for x
    x = 10,338,471,683.47/117,484.80
  6. Step 6: Final answer
    x = 87,998.38

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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.