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Finding the Fourth Proportional to 141,554.40, 212,331.60 and 97,317.60

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Solution

The fourth proportional to 141,554.40, 212,331.60 and 97,317.60 is: 145,976.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,554.40 : 212,331.60 = 97,317.60 : x
  2. Step 2: Convert to fraction form
    141,554.40/212,331.60 = 97,317.60/x
  3. Step 3: Cross multiply
    141,554.40x = 212,331.60 × 97,317.60
  4. Step 4: Simplify right side
    141,554.40x = 20,663,601,716.16
  5. Step 5: Solve for x
    x = 20,663,601,716.16/141,554.40
  6. Step 6: Final answer
    x = 145,976.40

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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.