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Finding the Fourth Proportional to 56,164,486.70, 78,800,342.50 and 56,164,486.70

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Solution

The fourth proportional to 56,164,486.70, 78,800,342.50 and 56,164,486.70 is: 78,800,342.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,164,486.70 : 78,800,342.50 = 56,164,486.70 : x
  2. Step 2: Convert to fraction form
    56,164,486.70/78,800,342.50 = 56,164,486.70/x
  3. Step 3: Cross multiply
    56,164,486.70x = 78,800,342.50 × 56,164,486.70
  4. Step 4: Simplify right side
    56,164,486.70x = 4,425,780,788,296,695
  5. Step 5: Solve for x
    x = 4,425,780,788,296,695/56,164,486.70
  6. Step 6: Final answer
    x = 78,800,342.50

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.