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Finding the Fourth Proportional to 188,486.01, 260,126.51 and 103,619.07

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Solution

The fourth proportional to 188,486.01, 260,126.51 and 103,619.07 is: 143,003.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,486.01 : 260,126.51 = 103,619.07 : x
  2. Step 2: Convert to fraction form
    188,486.01/260,126.51 = 103,619.07/x
  3. Step 3: Cross multiply
    188,486.01x = 260,126.51 × 103,619.07
  4. Step 4: Simplify right side
    188,486.01x = 26,954,066,530.45
  5. Step 5: Solve for x
    x = 26,954,066,530.45/188,486.01
  6. Step 6: Final answer
    x = 143,003.01

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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.