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Finding the Fourth Proportional to 262,510.78, 393,771.75 and 94,042.06

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Solution

The fourth proportional to 262,510.78, 393,771.75 and 94,042.06 is: 141,065.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,510.78 : 393,771.75 = 94,042.06 : x
  2. Step 2: Convert to fraction form
    262,510.78/393,771.75 = 94,042.06/x
  3. Step 3: Cross multiply
    262,510.78x = 393,771.75 × 94,042.06
  4. Step 4: Simplify right side
    262,510.78x = 37,031,106,539.81
  5. Step 5: Solve for x
    x = 37,031,106,539.81/262,510.78
  6. Step 6: Final answer
    x = 141,065.09

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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.