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Finding the Fourth Proportional to 208,342.60, 312,421.74 and 60,610.12

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Solution

The fourth proportional to 208,342.60, 312,421.74 and 60,610.12 is: 90,888.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,342.60 : 312,421.74 = 60,610.12 : x
  2. Step 2: Convert to fraction form
    208,342.60/312,421.74 = 60,610.12/x
  3. Step 3: Cross multiply
    208,342.60x = 312,421.74 × 60,610.12
  4. Step 4: Simplify right side
    208,342.60x = 18,935,919,152.01
  5. Step 5: Solve for x
    x = 18,935,919,152.01/208,342.60
  6. Step 6: Final answer
    x = 90,888.37

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1.5x scale

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.