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Finding the Fourth Proportional to 132,242.40, 198,392.76 and 43,492.32

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Solution

The fourth proportional to 132,242.40, 198,392.76 and 43,492.32 is: 65,248.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,242.40 : 198,392.76 = 43,492.32 : x
  2. Step 2: Convert to fraction form
    132,242.40/198,392.76 = 43,492.32/x
  3. Step 3: Cross multiply
    132,242.40x = 198,392.76 × 43,492.32
  4. Step 4: Simplify right side
    132,242.40x = 8,628,561,403.60
  5. Step 5: Solve for x
    x = 8,628,561,403.60/132,242.40
  6. Step 6: Final answer
    x = 65,248.07

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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.