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Finding the Fourth Proportional to 191,573.61, 264,371.54 and 111,047.87

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Solution

The fourth proportional to 191,573.61, 264,371.54 and 111,047.87 is: 153,246.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,573.61 : 264,371.54 = 111,047.87 : x
  2. Step 2: Convert to fraction form
    191,573.61/264,371.54 = 111,047.87/x
  3. Step 3: Cross multiply
    191,573.61x = 264,371.54 × 111,047.87
  4. Step 4: Simplify right side
    191,573.61x = 29,357,894,528.52
  5. Step 5: Solve for x
    x = 29,357,894,528.52/191,573.61
  6. Step 6: Final answer
    x = 153,246.03

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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.