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Finding the Fourth Proportional to 28,193,054.40, 42,195,103.20 and 28,193,054.40

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Solution

The fourth proportional to 28,193,054.40, 42,195,103.20 and 28,193,054.40 is: 42,195,103.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,193,054.40 : 42,195,103.20 = 28,193,054.40 : x
  2. Step 2: Convert to fraction form
    28,193,054.40/42,195,103.20 = 28,193,054.40/x
  3. Step 3: Cross multiply
    28,193,054.40x = 42,195,103.20 × 28,193,054.40
  4. Step 4: Simplify right side
    28,193,054.40x = 1,189,608,839,931,214
  5. Step 5: Solve for x
    x = 1,189,608,839,931,214/28,193,054.40
  6. Step 6: Final answer
    x = 42,195,103.20

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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.