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Finding the Fourth Proportional to 270,666.72, 406,024.02 and 70,986.42

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Solution

The fourth proportional to 270,666.72, 406,024.02 and 70,986.42 is: 106,485.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,666.72 : 406,024.02 = 70,986.42 : x
  2. Step 2: Convert to fraction form
    270,666.72/406,024.02 = 70,986.42/x
  3. Step 3: Cross multiply
    270,666.72x = 406,024.02 × 70,986.42
  4. Step 4: Simplify right side
    270,666.72x = 28,822,191,613.81
  5. Step 5: Solve for x
    x = 28,822,191,613.81/270,666.72
  6. Step 6: Final answer
    x = 106,485.91

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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.