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Finding the Fourth Proportional to 219,369.06, 302,726.97 and 123,870.06

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Solution

The fourth proportional to 219,369.06, 302,726.97 and 123,870.06 is: 170,939.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,369.06 : 302,726.97 = 123,870.06 : x
  2. Step 2: Convert to fraction form
    219,369.06/302,726.97 = 123,870.06/x
  3. Step 3: Cross multiply
    219,369.06x = 302,726.97 × 123,870.06
  4. Step 4: Simplify right side
    219,369.06x = 37,498,807,937.52
  5. Step 5: Solve for x
    x = 37,498,807,937.52/219,369.06
  6. Step 6: Final answer
    x = 170,939.37

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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.