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Finding the Fourth Proportional to 105,801.94, 158,703.84 and 26,916.25

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Solution

The fourth proportional to 105,801.94, 158,703.84 and 26,916.25 is: 40,374.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,801.94 : 158,703.84 = 26,916.25 : x
  2. Step 2: Convert to fraction form
    105,801.94/158,703.84 = 26,916.25/x
  3. Step 3: Cross multiply
    105,801.94x = 158,703.84 × 26,916.25
  4. Step 4: Simplify right side
    105,801.94x = 4,271,712,233.40
  5. Step 5: Solve for x
    x = 4,271,712,233.40/105,801.94
  6. Step 6: Final answer
    x = 40,374.61

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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.