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Finding the Fourth Proportional to 47,240,079.20, 70,734,147.60 and 47,240,079.20

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Solution

The fourth proportional to 47,240,079.20, 70,734,147.60 and 47,240,079.20 is: 70,734,147.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,240,079.20 : 70,734,147.60 = 47,240,079.20 : x
  2. Step 2: Convert to fraction form
    47,240,079.20/70,734,147.60 = 47,240,079.20/x
  3. Step 3: Cross multiply
    47,240,079.20x = 70,734,147.60 × 47,240,079.20
  4. Step 4: Simplify right side
    47,240,079.20x = 3,341,486,734,768,490
  5. Step 5: Solve for x
    x = 3,341,486,734,768,490/47,240,079.20
  6. Step 6: Final answer
    x = 70,734,147.60

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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.