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Finding the Fourth Proportional to 108,809.16, 150,156.73 and 61,062.51

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Solution

The fourth proportional to 108,809.16, 150,156.73 and 61,062.51 is: 84,266.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,809.16 : 150,156.73 = 61,062.51 : x
  2. Step 2: Convert to fraction form
    108,809.16/150,156.73 = 61,062.51/x
  3. Step 3: Cross multiply
    108,809.16x = 150,156.73 × 61,062.51
  4. Step 4: Simplify right side
    108,809.16x = 9,168,946,450.24
  5. Step 5: Solve for x
    x = 9,168,946,450.24/108,809.16
  6. Step 6: Final answer
    x = 84,266.31

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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.