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Finding the Fourth Proportional to 186,323.44, 257,118.62 and 105,749.50

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Solution

The fourth proportional to 186,323.44, 257,118.62 and 105,749.50 is: 145,929.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,323.44 : 257,118.62 = 105,749.50 : x
  2. Step 2: Convert to fraction form
    186,323.44/257,118.62 = 105,749.50/x
  3. Step 3: Cross multiply
    186,323.44x = 257,118.62 × 105,749.50
  4. Step 4: Simplify right side
    186,323.44x = 27,190,164,976.94
  5. Step 5: Solve for x
    x = 27,190,164,976.94/186,323.44
  6. Step 6: Final answer
    x = 145,929.92

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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.