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Finding the Fourth Proportional to 492,089.40, 738,134.10 and 118,112.40

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Solution

The fourth proportional to 492,089.40, 738,134.10 and 118,112.40 is: 177,168.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,089.40 : 738,134.10 = 118,112.40 : x
  2. Step 2: Convert to fraction form
    492,089.40/738,134.10 = 118,112.40/x
  3. Step 3: Cross multiply
    492,089.40x = 738,134.10 × 118,112.40
  4. Step 4: Simplify right side
    492,089.40x = 87,182,790,072.84
  5. Step 5: Solve for x
    x = 87,182,790,072.84/492,089.40
  6. Step 6: Final answer
    x = 177,168.60

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1.5x scale

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.