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Finding the Fourth Proportional to 47,258,139.40, 70,775,234.70 and 47,258,139.40

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Solution

The fourth proportional to 47,258,139.40, 70,775,234.70 and 47,258,139.40 is: 70,775,234.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,258,139.40 : 70,775,234.70 = 47,258,139.40 : x
  2. Step 2: Convert to fraction form
    47,258,139.40/70,775,234.70 = 47,258,139.40/x
  3. Step 3: Cross multiply
    47,258,139.40x = 70,775,234.70 × 47,258,139.40
  4. Step 4: Simplify right side
    47,258,139.40x = 3,344,705,907,520,317
  5. Step 5: Solve for x
    x = 3,344,705,907,520,317/47,258,139.40
  6. Step 6: Final answer
    x = 70,775,234.70

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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.