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Finding the Fourth Proportional to 51,008,860.90, 71,563,570.70 and 51,008,860.90

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Solution

The fourth proportional to 51,008,860.90, 71,563,570.70 and 51,008,860.90 is: 71,563,570.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,008,860.90 : 71,563,570.70 = 51,008,860.90 : x
  2. Step 2: Convert to fraction form
    51,008,860.90/71,563,570.70 = 51,008,860.90/x
  3. Step 3: Cross multiply
    51,008,860.90x = 71,563,570.70 × 51,008,860.90
  4. Step 4: Simplify right side
    51,008,860.90x = 3,650,376,223,343,615.50
  5. Step 5: Solve for x
    x = 3,650,376,223,343,615.50/51,008,860.90
  6. Step 6: Final answer
    x = 71,563,570.70

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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.