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Finding the Fourth Proportional to 121,266.71, 181,855.71 and 46,349.81

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Solution

The fourth proportional to 121,266.71, 181,855.71 and 46,349.81 is: 69,507.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,266.71 : 181,855.71 = 46,349.81 : x
  2. Step 2: Convert to fraction form
    121,266.71/181,855.71 = 46,349.81/x
  3. Step 3: Cross multiply
    121,266.71x = 181,855.71 × 46,349.81
  4. Step 4: Simplify right side
    121,266.71x = 8,428,976,696.64
  5. Step 5: Solve for x
    x = 8,428,976,696.64/121,266.71
  6. Step 6: Final answer
    x = 69,507.76

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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.