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Finding the Fourth Proportional to 150,548.76, 207,742.32 and 86,907.06

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Solution

The fourth proportional to 150,548.76, 207,742.32 and 86,907.06 is: 119,923.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,548.76 : 207,742.32 = 86,907.06 : x
  2. Step 2: Convert to fraction form
    150,548.76/207,742.32 = 86,907.06/x
  3. Step 3: Cross multiply
    150,548.76x = 207,742.32 × 86,907.06
  4. Step 4: Simplify right side
    150,548.76x = 18,054,274,268.78
  5. Step 5: Solve for x
    x = 18,054,274,268.78/150,548.76
  6. Step 6: Final answer
    x = 119,923.10

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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.