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Finding the Fourth Proportional to 104,130, 143,725.32 and 59,443.92

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Solution

The fourth proportional to 104,130, 143,725.32 and 59,443.92 is: 82,047.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,130 : 143,725.32 = 59,443.92 : x
  2. Step 2: Convert to fraction form
    104,130/143,725.32 = 59,443.92/x
  3. Step 3: Cross multiply
    104,130x = 143,725.32 × 59,443.92
  4. Step 4: Simplify right side
    104,130x = 8,543,596,424.05
  5. Step 5: Solve for x
    x = 8,543,596,424.05/104,130
  6. Step 6: Final answer
    x = 82,047.41

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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.