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Finding the Fourth Proportional to 217,810.10, 326,715.15 and 162,514.10

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Solution

The fourth proportional to 217,810.10, 326,715.15 and 162,514.10 is: 243,771.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,810.10 : 326,715.15 = 162,514.10 : x
  2. Step 2: Convert to fraction form
    217,810.10/326,715.15 = 162,514.10/x
  3. Step 3: Cross multiply
    217,810.10x = 326,715.15 × 162,514.10
  4. Step 4: Simplify right side
    217,810.10x = 53,095,818,558.62
  5. Step 5: Solve for x
    x = 53,095,818,558.62/217,810.10
  6. Step 6: Final answer
    x = 243,771.15

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1.5x scale

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.