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Finding the Fourth Proportional to 191,865.48, 264,709.88 and 111,263.60

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Solution

The fourth proportional to 191,865.48, 264,709.88 and 111,263.60 is: 153,506.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,865.48 : 264,709.88 = 111,263.60 : x
  2. Step 2: Convert to fraction form
    191,865.48/264,709.88 = 111,263.60/x
  3. Step 3: Cross multiply
    191,865.48x = 264,709.88 × 111,263.60
  4. Step 4: Simplify right side
    191,865.48x = 29,452,574,204.37
  5. Step 5: Solve for x
    x = 29,452,574,204.37/191,865.48
  6. Step 6: Final answer
    x = 153,506.37

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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.