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Finding the Fourth Proportional to 202,322.40, 303,483.60 and 97,087.20

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Solution

The fourth proportional to 202,322.40, 303,483.60 and 97,087.20 is: 145,630.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,322.40 : 303,483.60 = 97,087.20 : x
  2. Step 2: Convert to fraction form
    202,322.40/303,483.60 = 97,087.20/x
  3. Step 3: Cross multiply
    202,322.40x = 303,483.60 × 97,087.20
  4. Step 4: Simplify right side
    202,322.40x = 29,464,372,969.92
  5. Step 5: Solve for x
    x = 29,464,372,969.92/202,322.40
  6. Step 6: Final answer
    x = 145,630.80

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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.