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Finding the Fourth Proportional to 108,663.55, 162,869.35 and 41,152.68

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Solution

The fourth proportional to 108,663.55, 162,869.35 and 41,152.68 is: 61,681.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,663.55 : 162,869.35 = 41,152.68 : x
  2. Step 2: Convert to fraction form
    108,663.55/162,869.35 = 41,152.68/x
  3. Step 3: Cross multiply
    108,663.55x = 162,869.35 × 41,152.68
  4. Step 4: Simplify right side
    108,663.55x = 6,702,510,501.09
  5. Step 5: Solve for x
    x = 6,702,510,501.09/108,663.55
  6. Step 6: Final answer
    x = 61,681.31

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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.