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Finding the Fourth Proportional to 143,903.67, 215,928.40 and 97,058.13

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Solution

The fourth proportional to 143,903.67, 215,928.40 and 97,058.13 is: 145,636.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,903.67 : 215,928.40 = 97,058.13 : x
  2. Step 2: Convert to fraction form
    143,903.67/215,928.40 = 97,058.13/x
  3. Step 3: Cross multiply
    143,903.67x = 215,928.40 × 97,058.13
  4. Step 4: Simplify right side
    143,903.67x = 20,957,606,717.89
  5. Step 5: Solve for x
    x = 20,957,606,717.89/143,903.67
  6. Step 6: Final answer
    x = 145,636.36

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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.