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Finding the Fourth Proportional to 117,888.48, 162,693.36 and 67,603.68

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Solution

The fourth proportional to 117,888.48, 162,693.36 and 67,603.68 is: 93,297.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,888.48 : 162,693.36 = 67,603.68 : x
  2. Step 2: Convert to fraction form
    117,888.48/162,693.36 = 67,603.68/x
  3. Step 3: Cross multiply
    117,888.48x = 162,693.36 × 67,603.68
  4. Step 4: Simplify right side
    117,888.48x = 10,998,669,847.56
  5. Step 5: Solve for x
    x = 10,998,669,847.56/117,888.48
  6. Step 6: Final answer
    x = 93,297.24

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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.