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Finding the Fourth Proportional to 218,040.60, 327,071.70 and 113,064.60

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Solution

The fourth proportional to 218,040.60, 327,071.70 and 113,064.60 is: 169,602.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,040.60 : 327,071.70 = 113,064.60 : x
  2. Step 2: Convert to fraction form
    218,040.60/327,071.70 = 113,064.60/x
  3. Step 3: Cross multiply
    218,040.60x = 327,071.70 × 113,064.60
  4. Step 4: Simplify right side
    218,040.60x = 36,980,230,931.82
  5. Step 5: Solve for x
    x = 36,980,230,931.82/218,040.60
  6. Step 6: Final answer
    x = 169,602.50

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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.