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Finding the Fourth Proportional to 97,649.60, 146,474.40 and 53,412.80

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Solution

The fourth proportional to 97,649.60, 146,474.40 and 53,412.80 is: 80,119.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,649.60 : 146,474.40 = 53,412.80 : x
  2. Step 2: Convert to fraction form
    97,649.60/146,474.40 = 53,412.80/x
  3. Step 3: Cross multiply
    97,649.60x = 146,474.40 × 53,412.80
  4. Step 4: Simplify right side
    97,649.60x = 7,823,607,832.32
  5. Step 5: Solve for x
    x = 7,823,607,832.32/97,649.60
  6. Step 6: Final answer
    x = 80,119.20

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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.