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Finding the Fourth Proportional to 102,615.10, 153,594.60 and 73,090.60

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Solution

The fourth proportional to 102,615.10, 153,594.60 and 73,090.60 is: 109,402.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,615.10 : 153,594.60 = 73,090.60 : x
  2. Step 2: Convert to fraction form
    102,615.10/153,594.60 = 73,090.60/x
  3. Step 3: Cross multiply
    102,615.10x = 153,594.60 × 73,090.60
  4. Step 4: Simplify right side
    102,615.10x = 11,226,321,470.76
  5. Step 5: Solve for x
    x = 11,226,321,470.76/102,615.10
  6. Step 6: Final answer
    x = 109,402.24

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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.