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Finding the Fourth Proportional to 247,887.90, 342,085.26 and 134,710.65

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Solution

The fourth proportional to 247,887.90, 342,085.26 and 134,710.65 is: 185,900.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,887.90 : 342,085.26 = 134,710.65 : x
  2. Step 2: Convert to fraction form
    247,887.90/342,085.26 = 134,710.65/x
  3. Step 3: Cross multiply
    247,887.90x = 342,085.26 × 134,710.65
  4. Step 4: Simplify right side
    247,887.90x = 46,082,527,730.02
  5. Step 5: Solve for x
    x = 46,082,527,730.02/247,887.90
  6. Step 6: Final answer
    x = 185,900.67

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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.