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Finding the Fourth Proportional to 73,412.70, 110,119.05 and 63,390.30

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Solution

The fourth proportional to 73,412.70, 110,119.05 and 63,390.30 is: 95,085.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,412.70 : 110,119.05 = 63,390.30 : x
  2. Step 2: Convert to fraction form
    73,412.70/110,119.05 = 63,390.30/x
  3. Step 3: Cross multiply
    73,412.70x = 110,119.05 × 63,390.30
  4. Step 4: Simplify right side
    73,412.70x = 6,980,479,615.22
  5. Step 5: Solve for x
    x = 6,980,479,615.22/73,412.70
  6. Step 6: Final answer
    x = 95,085.45

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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.