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Finding the Fourth Proportional to 217,709.10, 300,442.28 and 119,596.48

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Solution

The fourth proportional to 217,709.10, 300,442.28 and 119,596.48 is: 165,045.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,709.10 : 300,442.28 = 119,596.48 : x
  2. Step 2: Convert to fraction form
    217,709.10/300,442.28 = 119,596.48/x
  3. Step 3: Cross multiply
    217,709.10x = 300,442.28 × 119,596.48
  4. Step 4: Simplify right side
    217,709.10x = 35,931,837,030.98
  5. Step 5: Solve for x
    x = 35,931,837,030.98/217,709.10
  6. Step 6: Final answer
    x = 165,045.18

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1.5x scale

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.