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Finding the Fourth Proportional to 291,398.76, 402,190.11 and 183,896.64

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Solution

The fourth proportional to 291,398.76, 402,190.11 and 183,896.64 is: 253,815.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,398.76 : 402,190.11 = 183,896.64 : x
  2. Step 2: Convert to fraction form
    291,398.76/402,190.11 = 183,896.64/x
  3. Step 3: Cross multiply
    291,398.76x = 402,190.11 × 183,896.64
  4. Step 4: Simplify right side
    291,398.76x = 73,961,409,870.23
  5. Step 5: Solve for x
    x = 73,961,409,870.23/291,398.76
  6. Step 6: Final answer
    x = 253,815.12

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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.