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Finding the Fourth Proportional to 492,615.32, 738,923.00 and 118,638.32

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Solution

The fourth proportional to 492,615.32, 738,923.00 and 118,638.32 is: 177,957.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,615.32 : 738,923.00 = 118,638.32 : x
  2. Step 2: Convert to fraction form
    492,615.32/738,923.00 = 118,638.32/x
  3. Step 3: Cross multiply
    492,615.32x = 738,923.00 × 118,638.32
  4. Step 4: Simplify right side
    492,615.32x = 87,664,579,041.55
  5. Step 5: Solve for x
    x = 87,664,579,041.55/492,615.32
  6. Step 6: Final answer
    x = 177,957.48

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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.