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Finding the Fourth Proportional to 292,980.99, 439,471.49 and 105,948.75

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Solution

The fourth proportional to 292,980.99, 439,471.49 and 105,948.75 is: 158,923.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,980.99 : 439,471.49 = 105,948.75 : x
  2. Step 2: Convert to fraction form
    292,980.99/439,471.49 = 105,948.75/x
  3. Step 3: Cross multiply
    292,980.99x = 439,471.49 × 105,948.75
  4. Step 4: Simplify right side
    292,980.99x = 46,561,454,496.39
  5. Step 5: Solve for x
    x = 46,561,454,496.39/292,980.99
  6. Step 6: Final answer
    x = 158,923.13

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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.