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Finding the Fourth Proportional to 105,971.40, 158,858.28 and 35,801.64

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Solution

The fourth proportional to 105,971.40, 158,858.28 and 35,801.64 is: 53,669.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,971.40 : 158,858.28 = 35,801.64 : x
  2. Step 2: Convert to fraction form
    105,971.40/158,858.28 = 35,801.64/x
  3. Step 3: Cross multiply
    105,971.40x = 158,858.28 × 35,801.64
  4. Step 4: Simplify right side
    105,971.40x = 5,687,386,951.58
  5. Step 5: Solve for x
    x = 5,687,386,951.58/105,971.40
  6. Step 6: Final answer
    x = 53,669.07

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1.5x scale

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.