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Finding the Fourth Proportional to 106,036.40, 159,054.60 and 74,932.40

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Solution

The fourth proportional to 106,036.40, 159,054.60 and 74,932.40 is: 112,398.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,036.40 : 159,054.60 = 74,932.40 : x
  2. Step 2: Convert to fraction form
    106,036.40/159,054.60 = 74,932.40/x
  3. Step 3: Cross multiply
    106,036.40x = 159,054.60 × 74,932.40
  4. Step 4: Simplify right side
    106,036.40x = 11,918,342,909.04
  5. Step 5: Solve for x
    x = 11,918,342,909.04/106,036.40
  6. Step 6: Final answer
    x = 112,398.60

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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.