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Finding the Fourth Proportional to 191,323.70, 264,390.84 and 143,494.01

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Solution

The fourth proportional to 191,323.70, 264,390.84 and 143,494.01 is: 198,294.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,323.70 : 264,390.84 = 143,494.01 : x
  2. Step 2: Convert to fraction form
    191,323.70/264,390.84 = 143,494.01/x
  3. Step 3: Cross multiply
    191,323.70x = 264,390.84 × 143,494.01
  4. Step 4: Simplify right side
    191,323.70x = 37,938,502,499.85
  5. Step 5: Solve for x
    x = 37,938,502,499.85/191,323.70
  6. Step 6: Final answer
    x = 198,294.84

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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.