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Finding the Fourth Proportional to 235,673.44, 353,300.56 and 85,885.52

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Solution

The fourth proportional to 235,673.44, 353,300.56 and 85,885.52 is: 128,751.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,673.44 : 353,300.56 = 85,885.52 : x
  2. Step 2: Convert to fraction form
    235,673.44/353,300.56 = 85,885.52/x
  3. Step 3: Cross multiply
    235,673.44x = 353,300.56 × 85,885.52
  4. Step 4: Simplify right side
    235,673.44x = 30,343,402,311.89
  5. Step 5: Solve for x
    x = 30,343,402,311.89/235,673.44
  6. Step 6: Final answer
    x = 128,751.90

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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.