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Finding the Fourth Proportional to 147,600.10, 221,072.10 and 114,211.90

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Solution

The fourth proportional to 147,600.10, 221,072.10 and 114,211.90 is: 171,064.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,600.10 : 221,072.10 = 114,211.90 : x
  2. Step 2: Convert to fraction form
    147,600.10/221,072.10 = 114,211.90/x
  3. Step 3: Cross multiply
    147,600.10x = 221,072.10 × 114,211.90
  4. Step 4: Simplify right side
    147,600.10x = 25,249,064,577.99
  5. Step 5: Solve for x
    x = 25,249,064,577.99/147,600.10
  6. Step 6: Final answer
    x = 171,064.01

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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.