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Finding the Fourth Proportional to 79,153.76, 118,743.60 and 37,586.72

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Solution

The fourth proportional to 79,153.76, 118,743.60 and 37,586.72 is: 56,386.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,153.76 : 118,743.60 = 37,586.72 : x
  2. Step 2: Convert to fraction form
    79,153.76/118,743.60 = 37,586.72/x
  3. Step 3: Cross multiply
    79,153.76x = 118,743.60 × 37,586.72
  4. Step 4: Simplify right side
    79,153.76x = 4,463,182,444.99
  5. Step 5: Solve for x
    x = 4,463,182,444.99/79,153.76
  6. Step 6: Final answer
    x = 56,386.23

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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.