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Finding the Fourth Proportional to 60,312,912.40, 90,469,368.60 and 60,312,912.40

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Solution

The fourth proportional to 60,312,912.40, 90,469,368.60 and 60,312,912.40 is: 90,469,368.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,312,912.40 : 90,469,368.60 = 60,312,912.40 : x
  2. Step 2: Convert to fraction form
    60,312,912.40/90,469,368.60 = 60,312,912.40/x
  3. Step 3: Cross multiply
    60,312,912.40x = 90,469,368.60 × 60,312,912.40
  4. Step 4: Simplify right side
    60,312,912.40x = 5,456,471,103,255,110
  5. Step 5: Solve for x
    x = 5,456,471,103,255,110/60,312,912.40
  6. Step 6: Final answer
    x = 90,469,368.60

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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.