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Finding the Fourth Proportional to 492,323.76, 738,485.40 and 118,346.64

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Solution

The fourth proportional to 492,323.76, 738,485.40 and 118,346.64 is: 177,519.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,323.76 : 738,485.40 = 118,346.64 : x
  2. Step 2: Convert to fraction form
    492,323.76/738,485.40 = 118,346.64/x
  3. Step 3: Cross multiply
    492,323.76x = 738,485.40 × 118,346.64
  4. Step 4: Simplify right side
    492,323.76x = 87,397,265,779.06
  5. Step 5: Solve for x
    x = 87,397,265,779.06/492,323.76
  6. Step 6: Final answer
    x = 177,519.90

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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.