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Finding the Fourth Proportional to 348,064.74, 522,162.45 and 111,343.86

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Solution

The fourth proportional to 348,064.74, 522,162.45 and 111,343.86 is: 167,036.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,064.74 : 522,162.45 = 111,343.86 : x
  2. Step 2: Convert to fraction form
    348,064.74/522,162.45 = 111,343.86/x
  3. Step 3: Cross multiply
    348,064.74x = 522,162.45 × 111,343.86
  4. Step 4: Simplify right side
    348,064.74x = 58,139,582,730.06
  5. Step 5: Solve for x
    x = 58,139,582,730.06/348,064.74
  6. Step 6: Final answer
    x = 167,036.69

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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.