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Finding the Fourth Proportional to 121,054.50, 181,610.91 and 37,948.50

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Solution

The fourth proportional to 121,054.50, 181,610.91 and 37,948.50 is: 56,931.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,054.50 : 181,610.91 = 37,948.50 : x
  2. Step 2: Convert to fraction form
    121,054.50/181,610.91 = 37,948.50/x
  3. Step 3: Cross multiply
    121,054.50x = 181,610.91 × 37,948.50
  4. Step 4: Simplify right side
    121,054.50x = 6,891,861,618.14
  5. Step 5: Solve for x
    x = 6,891,861,618.14/121,054.50
  6. Step 6: Final answer
    x = 56,931.89

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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.