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Finding the Fourth Proportional to 60,432.51, 90,205.15 and 55,979.23

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Solution

The fourth proportional to 60,432.51, 90,205.15 and 55,979.23 is: 83,557.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,432.51 : 90,205.15 = 55,979.23 : x
  2. Step 2: Convert to fraction form
    60,432.51/90,205.15 = 55,979.23/x
  3. Step 3: Cross multiply
    60,432.51x = 90,205.15 × 55,979.23
  4. Step 4: Simplify right side
    60,432.51x = 5,049,614,533.33
  5. Step 5: Solve for x
    x = 5,049,614,533.33/60,432.51
  6. Step 6: Final answer
    x = 83,557.92

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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.