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Finding the Fourth Proportional to 153,324.63, 211,586.37 and 85,340.52

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Solution

The fourth proportional to 153,324.63, 211,586.37 and 85,340.52 is: 117,769.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,324.63 : 211,586.37 = 85,340.52 : x
  2. Step 2: Convert to fraction form
    153,324.63/211,586.37 = 85,340.52/x
  3. Step 3: Cross multiply
    153,324.63x = 211,586.37 × 85,340.52
  4. Step 4: Simplify right side
    153,324.63x = 18,056,889,356.08
  5. Step 5: Solve for x
    x = 18,056,889,356.08/153,324.63
  6. Step 6: Final answer
    x = 117,769.01

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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.