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Finding the Fourth Proportional to 326,186.51, 489,313.36 and 112,954.01

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Solution

The fourth proportional to 326,186.51, 489,313.36 and 112,954.01 is: 169,442.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,186.51 : 489,313.36 = 112,954.01 : x
  2. Step 2: Convert to fraction form
    326,186.51/489,313.36 = 112,954.01/x
  3. Step 3: Cross multiply
    326,186.51x = 489,313.36 × 112,954.01
  4. Step 4: Simplify right side
    326,186.51x = 55,269,905,970.22
  5. Step 5: Solve for x
    x = 55,269,905,970.22/326,186.51
  6. Step 6: Final answer
    x = 169,442.65

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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.