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Finding the Fourth Proportional to 186,395.58, 257,223.96 and 101,512.62

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Solution

The fourth proportional to 186,395.58, 257,223.96 and 101,512.62 is: 140,086.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,395.58 : 257,223.96 = 101,512.62 : x
  2. Step 2: Convert to fraction form
    186,395.58/257,223.96 = 101,512.62/x
  3. Step 3: Cross multiply
    186,395.58x = 257,223.96 × 101,512.62
  4. Step 4: Simplify right side
    186,395.58x = 26,111,478,106.38
  5. Step 5: Solve for x
    x = 26,111,478,106.38/186,395.58
  6. Step 6: Final answer
    x = 140,086.36

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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.