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Finding the Fourth Proportional to 60,672.40, 90,533.94 and 54,368.21

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Solution

The fourth proportional to 60,672.40, 90,533.94 and 54,368.21 is: 81,126.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,672.40 : 90,533.94 = 54,368.21 : x
  2. Step 2: Convert to fraction form
    60,672.40/90,533.94 = 54,368.21/x
  3. Step 3: Cross multiply
    60,672.40x = 90,533.94 × 54,368.21
  4. Step 4: Simplify right side
    60,672.40x = 4,922,168,262.05
  5. Step 5: Solve for x
    x = 4,922,168,262.05/60,672.40
  6. Step 6: Final answer
    x = 81,126.97

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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.