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Finding the Fourth Proportional to 210,483.02, 290,462 and 114,990.24

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Solution

The fourth proportional to 210,483.02, 290,462 and 114,990.24 is: 158,684.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,483.02 : 290,462 = 114,990.24 : x
  2. Step 2: Convert to fraction form
    210,483.02/290,462 = 114,990.24/x
  3. Step 3: Cross multiply
    210,483.02x = 290,462 × 114,990.24
  4. Step 4: Simplify right side
    210,483.02x = 33,400,295,090.88
  5. Step 5: Solve for x
    x = 33,400,295,090.88/210,483.02
  6. Step 6: Final answer
    x = 158,684.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.