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Finding the Fourth Proportional to 261,867.74, 392,827 and 104,060.84

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Solution

The fourth proportional to 261,867.74, 392,827 and 104,060.84 is: 156,101.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,867.74 : 392,827 = 104,060.84 : x
  2. Step 2: Convert to fraction form
    261,867.74/392,827 = 104,060.84/x
  3. Step 3: Cross multiply
    261,867.74x = 392,827 × 104,060.84
  4. Step 4: Simplify right side
    261,867.74x = 40,877,907,594.68
  5. Step 5: Solve for x
    x = 40,877,907,594.68/261,867.74
  6. Step 6: Final answer
    x = 156,101.35

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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.