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Finding the Fourth Proportional to 268,495.64, 402,477.39 and 126,085.98

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Solution

The fourth proportional to 268,495.64, 402,477.39 and 126,085.98 is: 189,004.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,495.64 : 402,477.39 = 126,085.98 : x
  2. Step 2: Convert to fraction form
    268,495.64/402,477.39 = 126,085.98/x
  3. Step 3: Cross multiply
    268,495.64x = 402,477.39 × 126,085.98
  4. Step 4: Simplify right side
    268,495.64x = 50,746,756,145.99
  5. Step 5: Solve for x
    x = 50,746,756,145.99/268,495.64
  6. Step 6: Final answer
    x = 189,004.03

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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.