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Finding the Fourth Proportional to 202,396.60, 303,681.30 and 97,161.40

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Solution

The fourth proportional to 202,396.60, 303,681.30 and 97,161.40 is: 145,783.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,396.60 : 303,681.30 = 97,161.40 : x
  2. Step 2: Convert to fraction form
    202,396.60/303,681.30 = 97,161.40/x
  3. Step 3: Cross multiply
    202,396.60x = 303,681.30 × 97,161.40
  4. Step 4: Simplify right side
    202,396.60x = 29,506,100,261.82
  5. Step 5: Solve for x
    x = 29,506,100,261.82/202,396.60
  6. Step 6: Final answer
    x = 145,783.58

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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.