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Finding the Fourth Proportional to 251,790.64, 377,547.86 and 99,833.76

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Solution

The fourth proportional to 251,790.64, 377,547.86 and 99,833.76 is: 149,695.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,790.64 : 377,547.86 = 99,833.76 : x
  2. Step 2: Convert to fraction form
    251,790.64/377,547.86 = 99,833.76/x
  3. Step 3: Cross multiply
    251,790.64x = 377,547.86 × 99,833.76
  4. Step 4: Simplify right side
    251,790.64x = 37,692,022,443.75
  5. Step 5: Solve for x
    x = 37,692,022,443.75/251,790.64
  6. Step 6: Final answer
    x = 149,695.88

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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.