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Finding the Fourth Proportional to 210,448.77, 290,408.45 and 114,937.01

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Solution

The fourth proportional to 210,448.77, 290,408.45 and 114,937.01 is: 158,607.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,448.77 : 290,408.45 = 114,937.01 : x
  2. Step 2: Convert to fraction form
    210,448.77/290,408.45 = 114,937.01/x
  3. Step 3: Cross multiply
    210,448.77x = 290,408.45 × 114,937.01
  4. Step 4: Simplify right side
    210,448.77x = 33,378,678,921.73
  5. Step 5: Solve for x
    x = 33,378,678,921.73/210,448.77
  6. Step 6: Final answer
    x = 158,607.15

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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.