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Finding the Fourth Proportional to 245,536.50, 368,303.70 and 68,043

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Solution

The fourth proportional to 245,536.50, 368,303.70 and 68,043 is: 102,064.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,536.50 : 368,303.70 = 68,043 : x
  2. Step 2: Convert to fraction form
    245,536.50/368,303.70 = 68,043/x
  3. Step 3: Cross multiply
    245,536.50x = 368,303.70 × 68,043
  4. Step 4: Simplify right side
    245,536.50x = 25,060,488,659.10
  5. Step 5: Solve for x
    x = 25,060,488,659.10/245,536.50
  6. Step 6: Final answer
    x = 102,064.21

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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.