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Finding the Fourth Proportional to 75,069.44, 112,448.16 and 35,657.60

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Solution

The fourth proportional to 75,069.44, 112,448.16 and 35,657.60 is: 53,412.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,069.44 : 112,448.16 = 35,657.60 : x
  2. Step 2: Convert to fraction form
    75,069.44/112,448.16 = 35,657.60/x
  3. Step 3: Cross multiply
    75,069.44x = 112,448.16 × 35,657.60
  4. Step 4: Simplify right side
    75,069.44x = 4,009,631,510.02
  5. Step 5: Solve for x
    x = 4,009,631,510.02/75,069.44
  6. Step 6: Final answer
    x = 53,412.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.