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Finding the Fourth Proportional to 210,087.96, 315,038.99 and 60,293.49

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Solution

The fourth proportional to 210,087.96, 315,038.99 and 60,293.49 is: 90,413.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,087.96 : 315,038.99 = 60,293.49 : x
  2. Step 2: Convert to fraction form
    210,087.96/315,038.99 = 60,293.49/x
  3. Step 3: Cross multiply
    210,087.96x = 315,038.99 × 60,293.49
  4. Step 4: Simplify right side
    210,087.96x = 18,994,799,891.71
  5. Step 5: Solve for x
    x = 18,994,799,891.71/210,087.96
  6. Step 6: Final answer
    x = 90,413.56

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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.