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Finding the Fourth Proportional to 235,373.12, 353,056.60 and 57,881.68

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Solution

The fourth proportional to 235,373.12, 353,056.60 and 57,881.68 is: 86,821.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,373.12 : 353,056.60 = 57,881.68 : x
  2. Step 2: Convert to fraction form
    235,373.12/353,056.60 = 57,881.68/x
  3. Step 3: Cross multiply
    235,373.12x = 353,056.60 × 57,881.68
  4. Step 4: Simplify right side
    235,373.12x = 20,435,509,143.09
  5. Step 5: Solve for x
    x = 20,435,509,143.09/235,373.12
  6. Step 6: Final answer
    x = 86,821.76

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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.