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Finding the Fourth Proportional to 105,909.48, 158,887.08 and 35,787.24

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Solution

The fourth proportional to 105,909.48, 158,887.08 and 35,787.24 is: 53,688.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,909.48 : 158,887.08 = 35,787.24 : x
  2. Step 2: Convert to fraction form
    105,909.48/158,887.08 = 35,787.24/x
  3. Step 3: Cross multiply
    105,909.48x = 158,887.08 × 35,787.24
  4. Step 4: Simplify right side
    105,909.48x = 5,686,130,064.86
  5. Step 5: Solve for x
    x = 5,686,130,064.86/105,909.48
  6. Step 6: Final answer
    x = 53,688.58

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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.