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Finding the Fourth Proportional to 355,166.30, 533,051.85 and 144,955.10

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Solution

The fourth proportional to 355,166.30, 533,051.85 and 144,955.10 is: 217,556.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,166.30 : 533,051.85 = 144,955.10 : x
  2. Step 2: Convert to fraction form
    355,166.30/533,051.85 = 144,955.10/x
  3. Step 3: Cross multiply
    355,166.30x = 533,051.85 × 144,955.10
  4. Step 4: Simplify right side
    355,166.30x = 77,268,584,221.94
  5. Step 5: Solve for x
    x = 77,268,584,221.94/355,166.30
  6. Step 6: Final answer
    x = 217,556.07

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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.