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Finding the Fourth Proportional to 154,338.03, 213,019.74 and 93,928.10

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Solution

The fourth proportional to 154,338.03, 213,019.74 and 93,928.10 is: 129,641.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,338.03 : 213,019.74 = 93,928.10 : x
  2. Step 2: Convert to fraction form
    154,338.03/213,019.74 = 93,928.10/x
  3. Step 3: Cross multiply
    154,338.03x = 213,019.74 × 93,928.10
  4. Step 4: Simplify right side
    154,338.03x = 20,008,538,375.60
  5. Step 5: Solve for x
    x = 20,008,538,375.60/154,338.03
  6. Step 6: Final answer
    x = 129,641.01

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1.5x scale

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.