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Finding the Fourth Proportional to 144,184.10, 216,211.35 and 55,408.10

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Solution

The fourth proportional to 144,184.10, 216,211.35 and 55,408.10 is: 83,087.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,184.10 : 216,211.35 = 55,408.10 : x
  2. Step 2: Convert to fraction form
    144,184.10/216,211.35 = 55,408.10/x
  3. Step 3: Cross multiply
    144,184.10x = 216,211.35 × 55,408.10
  4. Step 4: Simplify right side
    144,184.10x = 11,979,860,101.94
  5. Step 5: Solve for x
    x = 11,979,860,101.94/144,184.10
  6. Step 6: Final answer
    x = 83,087.25

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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.