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Finding the Fourth Proportional to 108,543.70, 162,815.55 and 49,494.70

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Solution

The fourth proportional to 108,543.70, 162,815.55 and 49,494.70 is: 74,242.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,543.70 : 162,815.55 = 49,494.70 : x
  2. Step 2: Convert to fraction form
    108,543.70/162,815.55 = 49,494.70/x
  3. Step 3: Cross multiply
    108,543.70x = 162,815.55 × 49,494.70
  4. Step 4: Simplify right side
    108,543.70x = 8,058,506,802.59
  5. Step 5: Solve for x
    x = 8,058,506,802.59/108,543.70
  6. Step 6: Final answer
    x = 74,242.05

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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.