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Finding the Fourth Proportional to 144,576.63, 199,491.95 and 90,823.58

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Solution

The fourth proportional to 144,576.63, 199,491.95 and 90,823.58 is: 125,321.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,576.63 : 199,491.95 = 90,823.58 : x
  2. Step 2: Convert to fraction form
    144,576.63/199,491.95 = 90,823.58/x
  3. Step 3: Cross multiply
    144,576.63x = 199,491.95 × 90,823.58
  4. Step 4: Simplify right side
    144,576.63x = 18,118,572,546.99
  5. Step 5: Solve for x
    x = 18,118,572,546.99/144,576.63
  6. Step 6: Final answer
    x = 125,321.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.