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Finding the Fourth Proportional to 68,871,531.60, 103,307,297.40 and 68,871,531.60

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Solution

The fourth proportional to 68,871,531.60, 103,307,297.40 and 68,871,531.60 is: 103,307,297.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,871,531.60 : 103,307,297.40 = 68,871,531.60 : x
  2. Step 2: Convert to fraction form
    68,871,531.60/103,307,297.40 = 68,871,531.60/x
  3. Step 3: Cross multiply
    68,871,531.60x = 103,307,297.40 × 68,871,531.60
  4. Step 4: Simplify right side
    68,871,531.60x = 7,114,931,797,394,698
  5. Step 5: Solve for x
    x = 7,114,931,797,394,698/68,871,531.60
  6. Step 6: Final answer
    x = 103,307,297.40

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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.