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Finding the Fourth Proportional to 368,210.61, 508,125.15 and 207,065.77

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Solution

The fourth proportional to 368,210.61, 508,125.15 and 207,065.77 is: 285,747.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,210.61 : 508,125.15 = 207,065.77 : x
  2. Step 2: Convert to fraction form
    368,210.61/508,125.15 = 207,065.77/x
  3. Step 3: Cross multiply
    368,210.61x = 508,125.15 × 207,065.77
  4. Step 4: Simplify right side
    368,210.61x = 105,215,324,170.80
  5. Step 5: Solve for x
    x = 105,215,324,170.80/368,210.61
  6. Step 6: Final answer
    x = 285,747.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.