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Finding the Fourth Proportional to 60,692,497.80, 91,038,746.70 and 40,285,163.40

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Solution

The fourth proportional to 60,692,497.80, 91,038,746.70 and 40,285,163.40 is: 60,427,745.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,692,497.80 : 91,038,746.70 = 40,285,163.40 : x
  2. Step 2: Convert to fraction form
    60,692,497.80/91,038,746.70 = 40,285,163.40/x
  3. Step 3: Cross multiply
    60,692,497.80x = 91,038,746.70 × 40,285,163.40
  4. Step 4: Simplify right side
    60,692,497.80x = 3,667,510,786,540,711
  5. Step 5: Solve for x
    x = 3,667,510,786,540,711/60,692,497.80
  6. Step 6: Final answer
    x = 60,427,745.10

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1.5x scale

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.