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Finding the Fourth Proportional to 143,897.67, 215,919.40 and 97,052.13

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Solution

The fourth proportional to 143,897.67, 215,919.40 and 97,052.13 is: 145,627.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,897.67 : 215,919.40 = 97,052.13 : x
  2. Step 2: Convert to fraction form
    143,897.67/215,919.40 = 97,052.13/x
  3. Step 3: Cross multiply
    143,897.67x = 215,919.40 × 97,052.13
  4. Step 4: Simplify right side
    143,897.67x = 20,955,437,678.32
  5. Step 5: Solve for x
    x = 20,955,437,678.32/143,897.67
  6. Step 6: Final answer
    x = 145,627.36

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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.