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Finding the Fourth Proportional to 108,266.60, 162,323.10 and 49,130.60

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Solution

The fourth proportional to 108,266.60, 162,323.10 and 49,130.60 is: 73,661.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,266.60 : 162,323.10 = 49,130.60 : x
  2. Step 2: Convert to fraction form
    108,266.60/162,323.10 = 49,130.60/x
  3. Step 3: Cross multiply
    108,266.60x = 162,323.10 × 49,130.60
  4. Step 4: Simplify right side
    108,266.60x = 7,975,031,296.86
  5. Step 5: Solve for x
    x = 7,975,031,296.86/108,266.60
  6. Step 6: Final answer
    x = 73,661.05

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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.