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Finding the Fourth Proportional to 67,641.54, 93,328.51 and 43,739.45

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Solution

The fourth proportional to 67,641.54, 93,328.51 and 43,739.45 is: 60,349.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,641.54 : 93,328.51 = 43,739.45 : x
  2. Step 2: Convert to fraction form
    67,641.54/93,328.51 = 43,739.45/x
  3. Step 3: Cross multiply
    67,641.54x = 93,328.51 × 43,739.45
  4. Step 4: Simplify right side
    67,641.54x = 4,082,137,478.02
  5. Step 5: Solve for x
    x = 4,082,137,478.02/67,641.54
  6. Step 6: Final answer
    x = 60,349.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.