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Finding the Fourth Proportional to 144,509.90, 216,764.85 and 134,668.40

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Solution

The fourth proportional to 144,509.90, 216,764.85 and 134,668.40 is: 202,002.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,509.90 : 216,764.85 = 134,668.40 : x
  2. Step 2: Convert to fraction form
    144,509.90/216,764.85 = 134,668.40/x
  3. Step 3: Cross multiply
    144,509.90x = 216,764.85 × 134,668.40
  4. Step 4: Simplify right side
    144,509.90x = 29,191,375,525.74
  5. Step 5: Solve for x
    x = 29,191,375,525.74/144,509.90
  6. Step 6: Final answer
    x = 202,002.60

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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.