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Finding the Fourth Proportional to 73,412.40, 101,302.20 and 50,775.60

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Solution

The fourth proportional to 73,412.40, 101,302.20 and 50,775.60 is: 70,065.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,412.40 : 101,302.20 = 50,775.60 : x
  2. Step 2: Convert to fraction form
    73,412.40/101,302.20 = 50,775.60/x
  3. Step 3: Cross multiply
    73,412.40x = 101,302.20 × 50,775.60
  4. Step 4: Simplify right side
    73,412.40x = 5,143,679,986.32
  5. Step 5: Solve for x
    x = 5,143,679,986.32/73,412.40
  6. Step 6: Final answer
    x = 70,065.55

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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.