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Finding the Fourth Proportional to 186,847.64, 257,855.22 and 101,970.16

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Solution

The fourth proportional to 186,847.64, 257,855.22 and 101,970.16 is: 140,721.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,847.64 : 257,855.22 = 101,970.16 : x
  2. Step 2: Convert to fraction form
    186,847.64/257,855.22 = 101,970.16/x
  3. Step 3: Cross multiply
    186,847.64x = 257,855.22 × 101,970.16
  4. Step 4: Simplify right side
    186,847.64x = 26,293,538,040.24
  5. Step 5: Solve for x
    x = 26,293,538,040.24/186,847.64
  6. Step 6: Final answer
    x = 140,721.81

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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.