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Finding the Fourth Proportional to 369,590.88, 554,328.72 and 120,271.20

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Solution

The fourth proportional to 369,590.88, 554,328.72 and 120,271.20 is: 180,388.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,590.88 : 554,328.72 = 120,271.20 : x
  2. Step 2: Convert to fraction form
    369,590.88/554,328.72 = 120,271.20/x
  3. Step 3: Cross multiply
    369,590.88x = 554,328.72 × 120,271.20
  4. Step 4: Simplify right side
    369,590.88x = 66,669,780,348.86
  5. Step 5: Solve for x
    x = 66,669,780,348.86/369,590.88
  6. Step 6: Final answer
    x = 180,388.06

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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.