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Finding the Fourth Proportional to 108,253.80, 162,405.30 and 49,106.40

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Solution

The fourth proportional to 108,253.80, 162,405.30 and 49,106.40 is: 73,670.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,253.80 : 162,405.30 = 49,106.40 : x
  2. Step 2: Convert to fraction form
    108,253.80/162,405.30 = 49,106.40/x
  3. Step 3: Cross multiply
    108,253.80x = 162,405.30 × 49,106.40
  4. Step 4: Simplify right side
    108,253.80x = 7,975,139,623.92
  5. Step 5: Solve for x
    x = 7,975,139,623.92/108,253.80
  6. Step 6: Final answer
    x = 73,670.76

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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.