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Finding the Fourth Proportional to 60,390.94, 90,179.73 and 49,319.59

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Solution

The fourth proportional to 60,390.94, 90,179.73 and 49,319.59 is: 73,647.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,390.94 : 90,179.73 = 49,319.59 : x
  2. Step 2: Convert to fraction form
    60,390.94/90,179.73 = 49,319.59/x
  3. Step 3: Cross multiply
    60,390.94x = 90,179.73 × 49,319.59
  4. Step 4: Simplify right side
    60,390.94x = 4,447,627,309.91
  5. Step 5: Solve for x
    x = 4,447,627,309.91/60,390.94
  6. Step 6: Final answer
    x = 73,647.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.