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Finding the Fourth Proportional to 60,692,483.80, 91,038,725.70 and 40,285,149.40

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Solution

The fourth proportional to 60,692,483.80, 91,038,725.70 and 40,285,149.40 is: 60,427,724.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,692,483.80 : 91,038,725.70 = 40,285,149.40 : x
  2. Step 2: Convert to fraction form
    60,692,483.80/91,038,725.70 = 40,285,149.40/x
  3. Step 3: Cross multiply
    60,692,483.80x = 91,038,725.70 × 40,285,149.40
  4. Step 4: Simplify right side
    60,692,483.80x = 3,667,508,666,010,119.50
  5. Step 5: Solve for x
    x = 3,667,508,666,010,119.50/60,692,483.80
  6. Step 6: Final answer
    x = 60,427,724.10

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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.