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Finding the Fourth Proportional to 180,156.99, 248,641.34 and 103,674.51

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Solution

The fourth proportional to 180,156.99, 248,641.34 and 103,674.51 is: 143,085.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,156.99 : 248,641.34 = 103,674.51 : x
  2. Step 2: Convert to fraction form
    180,156.99/248,641.34 = 103,674.51/x
  3. Step 3: Cross multiply
    180,156.99x = 248,641.34 × 103,674.51
  4. Step 4: Simplify right side
    180,156.99x = 25,777,769,090.24
  5. Step 5: Solve for x
    x = 25,777,769,090.24/180,156.99
  6. Step 6: Final answer
    x = 143,085.03

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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.