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Finding the Fourth Proportional to 60,386.94, 90,173.77 and 49,315.59

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Solution

The fourth proportional to 60,386.94, 90,173.77 and 49,315.59 is: 73,641.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,386.94 : 90,173.77 = 49,315.59 : x
  2. Step 2: Convert to fraction form
    60,386.94/90,173.77 = 49,315.59/x
  3. Step 3: Cross multiply
    60,386.94x = 90,173.77 × 49,315.59
  4. Step 4: Simplify right side
    60,386.94x = 4,446,972,546.79
  5. Step 5: Solve for x
    x = 4,446,972,546.79/60,386.94
  6. Step 6: Final answer
    x = 73,641.30

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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.