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Finding the Fourth Proportional to 492,806.40, 739,209.60 and 118,829.40

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Solution

The fourth proportional to 492,806.40, 739,209.60 and 118,829.40 is: 178,244.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,806.40 : 739,209.60 = 118,829.40 : x
  2. Step 2: Convert to fraction form
    492,806.40/739,209.60 = 118,829.40/x
  3. Step 3: Cross multiply
    492,806.40x = 739,209.60 × 118,829.40
  4. Step 4: Simplify right side
    492,806.40x = 87,839,833,242.24
  5. Step 5: Solve for x
    x = 87,839,833,242.24/492,806.40
  6. Step 6: Final answer
    x = 178,244.10

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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.