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Finding the Fourth Proportional to 291,709.69, 437,564.54 and 70,093.69

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Solution

The fourth proportional to 291,709.69, 437,564.54 and 70,093.69 is: 105,140.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,709.69 : 437,564.54 = 70,093.69 : x
  2. Step 2: Convert to fraction form
    291,709.69/437,564.54 = 70,093.69/x
  3. Step 3: Cross multiply
    291,709.69x = 437,564.54 × 70,093.69
  4. Step 4: Simplify right side
    291,709.69x = 30,670,512,303.08
  5. Step 5: Solve for x
    x = 30,670,512,303.08/291,709.69
  6. Step 6: Final answer
    x = 105,140.53

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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.