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Finding the Fourth Proportional to 186,501.98, 257,372.78 and 101,619.05

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Solution

The fourth proportional to 186,501.98, 257,372.78 and 101,619.05 is: 140,234.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,501.98 : 257,372.78 = 101,619.05 : x
  2. Step 2: Convert to fraction form
    186,501.98/257,372.78 = 101,619.05/x
  3. Step 3: Cross multiply
    186,501.98x = 257,372.78 × 101,619.05
  4. Step 4: Simplify right side
    186,501.98x = 26,153,975,604.50
  5. Step 5: Solve for x
    x = 26,153,975,604.50/186,501.98
  6. Step 6: Final answer
    x = 140,234.30

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1.5x scale

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.