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Finding the Fourth Proportional to 81,848.70, 112,950.72 and 46,038.69

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Solution

The fourth proportional to 81,848.70, 112,950.72 and 46,038.69 is: 63,533.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,848.70 : 112,950.72 = 46,038.69 : x
  2. Step 2: Convert to fraction form
    81,848.70/112,950.72 = 46,038.69/x
  3. Step 3: Cross multiply
    81,848.70x = 112,950.72 × 46,038.69
  4. Step 4: Simplify right side
    81,848.70x = 5,200,103,183.36
  5. Step 5: Solve for x
    x = 5,200,103,183.36/81,848.70
  6. Step 6: Final answer
    x = 63,533.12

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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.