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Finding the Fourth Proportional to 330,559.84, 495,903.60 and 141,016.96

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Solution

The fourth proportional to 330,559.84, 495,903.60 and 141,016.96 is: 211,552.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,559.84 : 495,903.60 = 141,016.96 : x
  2. Step 2: Convert to fraction form
    330,559.84/495,903.60 = 141,016.96/x
  3. Step 3: Cross multiply
    330,559.84x = 495,903.60 × 141,016.96
  4. Step 4: Simplify right side
    330,559.84x = 69,930,818,125.06
  5. Step 5: Solve for x
    x = 69,930,818,125.06/330,559.84
  6. Step 6: Final answer
    x = 211,552.67

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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.