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Finding the Fourth Proportional to 79,502.76, 109,717.70 and 49,303.94

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Solution

The fourth proportional to 79,502.76, 109,717.70 and 49,303.94 is: 68,041.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,502.76 : 109,717.70 = 49,303.94 : x
  2. Step 2: Convert to fraction form
    79,502.76/109,717.70 = 49,303.94/x
  3. Step 3: Cross multiply
    79,502.76x = 109,717.70 × 49,303.94
  4. Step 4: Simplify right side
    79,502.76x = 5,409,514,102.63
  5. Step 5: Solve for x
    x = 5,409,514,102.63/79,502.76
  6. Step 6: Final answer
    x = 68,041.84

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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.