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Finding the Fourth Proportional to 247,185.86, 370,885.66 and 105,062.36

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Solution

The fourth proportional to 247,185.86, 370,885.66 and 105,062.36 is: 157,638.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,185.86 : 370,885.66 = 105,062.36 : x
  2. Step 2: Convert to fraction form
    247,185.86/370,885.66 = 105,062.36/x
  3. Step 3: Cross multiply
    247,185.86x = 370,885.66 × 105,062.36
  4. Step 4: Simplify right side
    247,185.86x = 38,966,122,729.76
  5. Step 5: Solve for x
    x = 38,966,122,729.76/247,185.86
  6. Step 6: Final answer
    x = 157,638.96

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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.