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Finding the Fourth Proportional to 108,837.32, 163,302.74 and 56,283.71

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Solution

The fourth proportional to 108,837.32, 163,302.74 and 56,283.71 is: 84,449.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,837.32 : 163,302.74 = 56,283.71 : x
  2. Step 2: Convert to fraction form
    108,837.32/163,302.74 = 56,283.71/x
  3. Step 3: Cross multiply
    108,837.32x = 163,302.74 × 56,283.71
  4. Step 4: Simplify right side
    108,837.32x = 9,191,283,384.56
  5. Step 5: Solve for x
    x = 9,191,283,384.56/108,837.32
  6. Step 6: Final answer
    x = 84,449.74

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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.