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Finding the Fourth Proportional to 448,002.80, 672,004.20 and 152,514.80

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Solution

The fourth proportional to 448,002.80, 672,004.20 and 152,514.80 is: 228,772.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,002.80 : 672,004.20 = 152,514.80 : x
  2. Step 2: Convert to fraction form
    448,002.80/672,004.20 = 152,514.80/x
  3. Step 3: Cross multiply
    448,002.80x = 672,004.20 × 152,514.80
  4. Step 4: Simplify right side
    448,002.80x = 102,490,586,162.16
  5. Step 5: Solve for x
    x = 102,490,586,162.16/448,002.80
  6. Step 6: Final answer
    x = 228,772.20

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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.