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Finding the Fourth Proportional to 291,729.40, 437,593.96 and 70,113.40

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Solution

The fourth proportional to 291,729.40, 437,593.96 and 70,113.40 is: 105,170.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,729.40 : 437,593.96 = 70,113.40 : x
  2. Step 2: Convert to fraction form
    291,729.40/437,593.96 = 70,113.40/x
  3. Step 3: Cross multiply
    291,729.40x = 437,593.96 × 70,113.40
  4. Step 4: Simplify right side
    291,729.40x = 30,681,200,355.06
  5. Step 5: Solve for x
    x = 30,681,200,355.06/291,729.40
  6. Step 6: Final answer
    x = 105,170.07

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.