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Finding the Fourth Proportional to 97,412.40, 145,811.40 and 94,340.40

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Solution

The fourth proportional to 97,412.40, 145,811.40 and 94,340.40 is: 141,213.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,412.40 : 145,811.40 = 94,340.40 : x
  2. Step 2: Convert to fraction form
    97,412.40/145,811.40 = 94,340.40/x
  3. Step 3: Cross multiply
    97,412.40x = 145,811.40 × 94,340.40
  4. Step 4: Simplify right side
    97,412.40x = 13,755,905,800.56
  5. Step 5: Solve for x
    x = 13,755,905,800.56/97,412.40
  6. Step 6: Final answer
    x = 141,213.09

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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.