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Finding the Fourth Proportional to 88,361.16, 121,898.22 and 52,530.84

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Solution

The fourth proportional to 88,361.16, 121,898.22 and 52,530.84 is: 72,468.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,361.16 : 121,898.22 = 52,530.84 : x
  2. Step 2: Convert to fraction form
    88,361.16/121,898.22 = 52,530.84/x
  3. Step 3: Cross multiply
    88,361.16x = 121,898.22 × 52,530.84
  4. Step 4: Simplify right side
    88,361.16x = 6,403,415,891.10
  5. Step 5: Solve for x
    x = 6,403,415,891.10/88,361.16
  6. Step 6: Final answer
    x = 72,468.67

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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.