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Finding the Fourth Proportional to 243,576.59, 365,356.64 and 85,800.94

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Solution

The fourth proportional to 243,576.59, 365,356.64 and 85,800.94 is: 128,698.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,576.59 : 365,356.64 = 85,800.94 : x
  2. Step 2: Convert to fraction form
    243,576.59/365,356.64 = 85,800.94/x
  3. Step 3: Cross multiply
    243,576.59x = 365,356.64 × 85,800.94
  4. Step 4: Simplify right side
    243,576.59x = 31,347,942,448.35
  5. Step 5: Solve for x
    x = 31,347,942,448.35/243,576.59
  6. Step 6: Final answer
    x = 128,698.51

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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.