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Finding the Fourth Proportional to 108,432.63, 149,652.78 and 62,483.35

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Solution

The fourth proportional to 108,432.63, 149,652.78 and 62,483.35 is: 86,236.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,432.63 : 149,652.78 = 62,483.35 : x
  2. Step 2: Convert to fraction form
    108,432.63/149,652.78 = 62,483.35/x
  3. Step 3: Cross multiply
    108,432.63x = 149,652.78 × 62,483.35
  4. Step 4: Simplify right side
    108,432.63x = 9,350,807,031.21
  5. Step 5: Solve for x
    x = 9,350,807,031.21/108,432.63
  6. Step 6: Final answer
    x = 86,236.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.