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Finding the Fourth Proportional to 277,210.48, 415,866.94 and 87,718.54

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Solution

The fourth proportional to 277,210.48, 415,866.94 and 87,718.54 is: 131,594.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,210.48 : 415,866.94 = 87,718.54 : x
  2. Step 2: Convert to fraction form
    277,210.48/415,866.94 = 87,718.54/x
  3. Step 3: Cross multiply
    277,210.48x = 415,866.94 × 87,718.54
  4. Step 4: Simplify right side
    277,210.48x = 36,479,240,811.07
  5. Step 5: Solve for x
    x = 36,479,240,811.07/277,210.48
  6. Step 6: Final answer
    x = 131,594.02

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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.