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Finding the Fourth Proportional to 187,174.34, 258,300.01 and 102,291.40

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Solution

The fourth proportional to 187,174.34, 258,300.01 and 102,291.40 is: 141,161.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,174.34 : 258,300.01 = 102,291.40 : x
  2. Step 2: Convert to fraction form
    187,174.34/258,300.01 = 102,291.40/x
  3. Step 3: Cross multiply
    187,174.34x = 258,300.01 × 102,291.40
  4. Step 4: Simplify right side
    187,174.34x = 26,421,868,741.44
  5. Step 5: Solve for x
    x = 26,421,868,741.44/187,174.34
  6. Step 6: Final answer
    x = 141,161.81

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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.