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Finding the Fourth Proportional to 119,345.82, 179,018.72 and 56,826.78

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Solution

The fourth proportional to 119,345.82, 179,018.72 and 56,826.78 is: 85,240.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,345.82 : 179,018.72 = 56,826.78 : x
  2. Step 2: Convert to fraction form
    119,345.82/179,018.72 = 56,826.78/x
  3. Step 3: Cross multiply
    119,345.82x = 179,018.72 × 56,826.78
  4. Step 4: Simplify right side
    119,345.82x = 10,173,057,417.32
  5. Step 5: Solve for x
    x = 10,173,057,417.32/119,345.82
  6. Step 6: Final answer
    x = 85,240.17

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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.