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Finding the Fourth Proportional to 56,705,276.70, 85,057,915.05 and 56,705,276.70

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Solution

The fourth proportional to 56,705,276.70, 85,057,915.05 and 56,705,276.70 is: 85,057,915.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,705,276.70 : 85,057,915.05 = 56,705,276.70 : x
  2. Step 2: Convert to fraction form
    56,705,276.70/85,057,915.05 = 56,705,276.70/x
  3. Step 3: Cross multiply
    56,705,276.70x = 85,057,915.05 × 56,705,276.70
  4. Step 4: Simplify right side
    56,705,276.70x = 4,823,232,608,435,344
  5. Step 5: Solve for x
    x = 4,823,232,608,435,344/56,705,276.70
  6. Step 6: Final answer
    x = 85,057,915.05

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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.