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Finding the Fourth Proportional to 108,476.96, 149,696.64 and 60,730.08

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Solution

The fourth proportional to 108,476.96, 149,696.64 and 60,730.08 is: 83,806.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,476.96 : 149,696.64 = 60,730.08 : x
  2. Step 2: Convert to fraction form
    108,476.96/149,696.64 = 60,730.08/x
  3. Step 3: Cross multiply
    108,476.96x = 149,696.64 × 60,730.08
  4. Step 4: Simplify right side
    108,476.96x = 9,091,088,922.93
  5. Step 5: Solve for x
    x = 9,091,088,922.93/108,476.96
  6. Step 6: Final answer
    x = 83,806.63

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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.