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Finding the Fourth Proportional to 304,631.64, 456,978.06 and 104,925.72

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Solution

The fourth proportional to 304,631.64, 456,978.06 and 104,925.72 is: 157,399.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,631.64 : 456,978.06 = 104,925.72 : x
  2. Step 2: Convert to fraction form
    304,631.64/456,978.06 = 104,925.72/x
  3. Step 3: Cross multiply
    304,631.64x = 456,978.06 × 104,925.72
  4. Step 4: Simplify right side
    304,631.64x = 47,948,751,969.70
  5. Step 5: Solve for x
    x = 47,948,751,969.70/304,631.64
  6. Step 6: Final answer
    x = 157,399.12

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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.