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Finding the Fourth Proportional to 181,896.37, 251,019.66 and 105,421.12

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Solution

The fourth proportional to 181,896.37, 251,019.66 and 105,421.12 is: 145,482.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,896.37 : 251,019.66 = 105,421.12 : x
  2. Step 2: Convert to fraction form
    181,896.37/251,019.66 = 105,421.12/x
  3. Step 3: Cross multiply
    181,896.37x = 251,019.66 × 105,421.12
  4. Step 4: Simplify right side
    181,896.37x = 26,462,773,699.22
  5. Step 5: Solve for x
    x = 26,462,773,699.22/181,896.37
  6. Step 6: Final answer
    x = 145,482.69

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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.