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Finding the Fourth Proportional to 291,717.86, 437,576.72 and 70,101.86

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Solution

The fourth proportional to 291,717.86, 437,576.72 and 70,101.86 is: 105,152.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,717.86 : 437,576.72 = 70,101.86 : x
  2. Step 2: Convert to fraction form
    291,717.86/437,576.72 = 70,101.86/x
  3. Step 3: Cross multiply
    291,717.86x = 437,576.72 × 70,101.86
  4. Step 4: Simplify right side
    291,717.86x = 30,674,941,964.70
  5. Step 5: Solve for x
    x = 30,674,941,964.70/291,717.86
  6. Step 6: Final answer
    x = 105,152.77

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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.