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Finding the Fourth Proportional to 261,137.92, 360,480.56 and 176,369.80

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Solution

The fourth proportional to 261,137.92, 360,480.56 and 176,369.80 is: 243,464.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,137.92 : 360,480.56 = 176,369.80 : x
  2. Step 2: Convert to fraction form
    261,137.92/360,480.56 = 176,369.80/x
  3. Step 3: Cross multiply
    261,137.92x = 360,480.56 × 176,369.80
  4. Step 4: Simplify right side
    261,137.92x = 63,577,884,271.09
  5. Step 5: Solve for x
    x = 63,577,884,271.09/261,137.92
  6. Step 6: Final answer
    x = 243,464.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.