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Finding the Fourth Proportional to 144,485.64, 216,683.64 and 50,969.52

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Solution

The fourth proportional to 144,485.64, 216,683.64 and 50,969.52 is: 76,438.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,485.64 : 216,683.64 = 50,969.52 : x
  2. Step 2: Convert to fraction form
    144,485.64/216,683.64 = 50,969.52/x
  3. Step 3: Cross multiply
    144,485.64x = 216,683.64 × 50,969.52
  4. Step 4: Simplify right side
    144,485.64x = 11,044,261,122.65
  5. Step 5: Solve for x
    x = 11,044,261,122.65/144,485.64
  6. Step 6: Final answer
    x = 76,438.47

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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.