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Finding the Fourth Proportional to 91,974,000.40, 137,843,777.40 and 48,863,856.40

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Solution

The fourth proportional to 91,974,000.40, 137,843,777.40 and 48,863,856.40 is: 73,233,506.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,974,000.40 : 137,843,777.40 = 48,863,856.40 : x
  2. Step 2: Convert to fraction form
    91,974,000.40/137,843,777.40 = 48,863,856.40/x
  3. Step 3: Cross multiply
    91,974,000.40x = 137,843,777.40 × 48,863,856.40
  4. Step 4: Simplify right side
    91,974,000.40x = 6,735,578,544,507,165
  5. Step 5: Solve for x
    x = 6,735,578,544,507,165/91,974,000.40
  6. Step 6: Final answer
    x = 73,233,506.37

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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.