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Finding the Fourth Proportional to 255,216.58, 382,795.71 and 68,242.66

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Solution

The fourth proportional to 255,216.58, 382,795.71 and 68,242.66 is: 102,356.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,216.58 : 382,795.71 = 68,242.66 : x
  2. Step 2: Convert to fraction form
    255,216.58/382,795.71 = 68,242.66/x
  3. Step 3: Cross multiply
    255,216.58x = 382,795.71 × 68,242.66
  4. Step 4: Simplify right side
    255,216.58x = 26,122,997,486.99
  5. Step 5: Solve for x
    x = 26,122,997,486.99/255,216.58
  6. Step 6: Final answer
    x = 102,356.19

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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.