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Finding the Fourth Proportional to 176,542.90, 264,583.95 and 81,762.10

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Solution

The fourth proportional to 176,542.90, 264,583.95 and 81,762.10 is: 122,536.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,542.90 : 264,583.95 = 81,762.10 : x
  2. Step 2: Convert to fraction form
    176,542.90/264,583.95 = 81,762.10/x
  3. Step 3: Cross multiply
    176,542.90x = 264,583.95 × 81,762.10
  4. Step 4: Simplify right side
    176,542.90x = 21,632,939,378.30
  5. Step 5: Solve for x
    x = 21,632,939,378.30/176,542.90
  6. Step 6: Final answer
    x = 122,536.45

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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.