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Finding the Fourth Proportional to 186,323.71, 257,127.97 and 105,752.58

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Solution

The fourth proportional to 186,323.71, 257,127.97 and 105,752.58 is: 145,939.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,323.71 : 257,127.97 = 105,752.58 : x
  2. Step 2: Convert to fraction form
    186,323.71/257,127.97 = 105,752.58/x
  3. Step 3: Cross multiply
    186,323.71x = 257,127.97 × 105,752.58
  4. Step 4: Simplify right side
    186,323.71x = 27,191,946,217.66
  5. Step 5: Solve for x
    x = 27,191,946,217.66/186,323.71
  6. Step 6: Final answer
    x = 145,939.27

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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.