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Finding the Fourth Proportional to 142,399.94, 213,599.88 and 53,673.32

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Solution

The fourth proportional to 142,399.94, 213,599.88 and 53,673.32 is: 80,509.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,399.94 : 213,599.88 = 53,673.32 : x
  2. Step 2: Convert to fraction form
    142,399.94/213,599.88 = 53,673.32/x
  3. Step 3: Cross multiply
    142,399.94x = 213,599.88 × 53,673.32
  4. Step 4: Simplify right side
    142,399.94x = 11,464,614,711.20
  5. Step 5: Solve for x
    x = 11,464,614,711.20/142,399.94
  6. Step 6: Final answer
    x = 80,509.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.