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Finding the Fourth Proportional to 216,352.10, 298,582.06 and 124,499.54

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Solution

The fourth proportional to 216,352.10, 298,582.06 and 124,499.54 is: 171,818.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,352.10 : 298,582.06 = 124,499.54 : x
  2. Step 2: Convert to fraction form
    216,352.10/298,582.06 = 124,499.54/x
  3. Step 3: Cross multiply
    216,352.10x = 298,582.06 × 124,499.54
  4. Step 4: Simplify right side
    216,352.10x = 37,173,329,122.25
  5. Step 5: Solve for x
    x = 37,173,329,122.25/216,352.10
  6. Step 6: Final answer
    x = 171,818.67

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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.