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Finding the Fourth Proportional to 245,079.70, 367,533.15 and 87,313.30

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Solution

The fourth proportional to 245,079.70, 367,533.15 and 87,313.30 is: 130,939.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,079.70 : 367,533.15 = 87,313.30 : x
  2. Step 2: Convert to fraction form
    245,079.70/367,533.15 = 87,313.30/x
  3. Step 3: Cross multiply
    245,079.70x = 367,533.15 × 87,313.30
  4. Step 4: Simplify right side
    245,079.70x = 32,090,532,185.90
  5. Step 5: Solve for x
    x = 32,090,532,185.90/245,079.70
  6. Step 6: Final answer
    x = 130,939.17

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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.