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Finding the Fourth Proportional to 101,810.43, 152,559.75 and 42,613.86

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Solution

The fourth proportional to 101,810.43, 152,559.75 and 42,613.86 is: 63,855.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,810.43 : 152,559.75 = 42,613.86 : x
  2. Step 2: Convert to fraction form
    101,810.43/152,559.75 = 42,613.86/x
  3. Step 3: Cross multiply
    101,810.43x = 152,559.75 × 42,613.86
  4. Step 4: Simplify right side
    101,810.43x = 6,501,159,828.14
  5. Step 5: Solve for x
    x = 6,501,159,828.14/101,810.43
  6. Step 6: Final answer
    x = 63,855.54

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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.