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Finding the Fourth Proportional to 163,693.20, 245,539.80 and 104,352.60

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Solution

The fourth proportional to 163,693.20, 245,539.80 and 104,352.60 is: 156,528.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,693.20 : 245,539.80 = 104,352.60 : x
  2. Step 2: Convert to fraction form
    163,693.20/245,539.80 = 104,352.60/x
  3. Step 3: Cross multiply
    163,693.20x = 245,539.80 × 104,352.60
  4. Step 4: Simplify right side
    163,693.20x = 25,622,716,533.48
  5. Step 5: Solve for x
    x = 25,622,716,533.48/163,693.20
  6. Step 6: Final answer
    x = 156,528.90

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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.