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Finding the Fourth Proportional to 191,911.74, 264,851.22 and 111,339.24

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Solution

The fourth proportional to 191,911.74, 264,851.22 and 111,339.24 is: 153,655.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,911.74 : 264,851.22 = 111,339.24 : x
  2. Step 2: Convert to fraction form
    191,911.74/264,851.22 = 111,339.24/x
  3. Step 3: Cross multiply
    191,911.74x = 264,851.22 × 111,339.24
  4. Step 4: Simplify right side
    191,911.74x = 29,488,333,547.87
  5. Step 5: Solve for x
    x = 29,488,333,547.87/191,911.74
  6. Step 6: Final answer
    x = 153,655.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.