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Finding the Fourth Proportional to 108,806.70, 150,150.70 and 61,058.82

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Solution

The fourth proportional to 108,806.70, 150,150.70 and 61,058.82 is: 84,259.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,806.70 : 150,150.70 = 61,058.82 : x
  2. Step 2: Convert to fraction form
    108,806.70/150,150.70 = 61,058.82/x
  3. Step 3: Cross multiply
    108,806.70x = 150,150.70 × 61,058.82
  4. Step 4: Simplify right side
    108,806.70x = 9,168,024,564.17
  5. Step 5: Solve for x
    x = 9,168,024,564.17/108,806.70
  6. Step 6: Final answer
    x = 84,259.74

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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.