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Finding the Fourth Proportional to 110,655.32, 152,583.12 and 74,783.03

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Solution

The fourth proportional to 110,655.32, 152,583.12 and 74,783.03 is: 103,118.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,655.32 : 152,583.12 = 74,783.03 : x
  2. Step 2: Convert to fraction form
    110,655.32/152,583.12 = 74,783.03/x
  3. Step 3: Cross multiply
    110,655.32x = 152,583.12 × 74,783.03
  4. Step 4: Simplify right side
    110,655.32x = 11,410,627,277.54
  5. Step 5: Solve for x
    x = 11,410,627,277.54/110,655.32
  6. Step 6: Final answer
    x = 103,118.66

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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.