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Finding the Fourth Proportional to 262,561.51, 393,823.14 and 102,607.48

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Solution

The fourth proportional to 262,561.51, 393,823.14 and 102,607.48 is: 153,903.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,561.51 : 393,823.14 = 102,607.48 : x
  2. Step 2: Convert to fraction form
    262,561.51/393,823.14 = 102,607.48/x
  3. Step 3: Cross multiply
    262,561.51x = 393,823.14 × 102,607.48
  4. Step 4: Simplify right side
    262,561.51x = 40,409,199,961.09
  5. Step 5: Solve for x
    x = 40,409,199,961.09/262,561.51
  6. Step 6: Final answer
    x = 153,903.75

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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.