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Finding the Fourth Proportional to 391,710.88, 587,566.32 and 96,222.88

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Solution

The fourth proportional to 391,710.88, 587,566.32 and 96,222.88 is: 144,334.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,710.88 : 587,566.32 = 96,222.88 : x
  2. Step 2: Convert to fraction form
    391,710.88/587,566.32 = 96,222.88/x
  3. Step 3: Cross multiply
    391,710.88x = 587,566.32 × 96,222.88
  4. Step 4: Simplify right side
    391,710.88x = 56,537,323,501.40
  5. Step 5: Solve for x
    x = 56,537,323,501.40/391,710.88
  6. Step 6: Final answer
    x = 144,334.32

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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.