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Finding the Fourth Proportional to 448,132.80, 672,004.80 and 148,497.60

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Solution

The fourth proportional to 448,132.80, 672,004.80 and 148,497.60 is: 222,681.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,132.80 : 672,004.80 = 148,497.60 : x
  2. Step 2: Convert to fraction form
    448,132.80/672,004.80 = 148,497.60/x
  3. Step 3: Cross multiply
    448,132.80x = 672,004.80 × 148,497.60
  4. Step 4: Simplify right side
    448,132.80x = 99,791,099,988.48
  5. Step 5: Solve for x
    x = 99,791,099,988.48/448,132.80
  6. Step 6: Final answer
    x = 222,681.98

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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.