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Finding the Fourth Proportional to 79,263.76, 109,395.12 and 49,058.76

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Solution

The fourth proportional to 79,263.76, 109,395.12 and 49,058.76 is: 67,707.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,263.76 : 109,395.12 = 49,058.76 : x
  2. Step 2: Convert to fraction form
    79,263.76/109,395.12 = 49,058.76/x
  3. Step 3: Cross multiply
    79,263.76x = 109,395.12 × 49,058.76
  4. Step 4: Simplify right side
    79,263.76x = 5,366,788,937.25
  5. Step 5: Solve for x
    x = 5,366,788,937.25/79,263.76
  6. Step 6: Final answer
    x = 67,707.98

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1.5x scale

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.