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Finding the Fourth Proportional to 153,260.65, 211,596.87 and 104,943.43

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Solution

The fourth proportional to 153,260.65, 211,596.87 and 104,943.43 is: 144,888.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,260.65 : 211,596.87 = 104,943.43 : x
  2. Step 2: Convert to fraction form
    153,260.65/211,596.87 = 104,943.43/x
  3. Step 3: Cross multiply
    153,260.65x = 211,596.87 × 104,943.43
  4. Step 4: Simplify right side
    153,260.65x = 22,205,701,315.06
  5. Step 5: Solve for x
    x = 22,205,701,315.06/153,260.65
  6. Step 6: Final answer
    x = 144,888.47

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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.