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Finding the Fourth Proportional to 186,379.90, 257,208.36 and 101,496.98

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Solution

The fourth proportional to 186,379.90, 257,208.36 and 101,496.98 is: 140,068.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,379.90 : 257,208.36 = 101,496.98 : x
  2. Step 2: Convert to fraction form
    186,379.90/257,208.36 = 101,496.98/x
  3. Step 3: Cross multiply
    186,379.90x = 257,208.36 × 101,496.98
  4. Step 4: Simplify right side
    186,379.90x = 26,105,871,770.75
  5. Step 5: Solve for x
    x = 26,105,871,770.75/186,379.90
  6. Step 6: Final answer
    x = 140,068.06

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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.