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Finding the Fourth Proportional to 153,259.65, 211,595.49 and 104,942.43

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Solution

The fourth proportional to 153,259.65, 211,595.49 and 104,942.43 is: 144,887.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,259.65 : 211,595.49 = 104,942.43 : x
  2. Step 2: Convert to fraction form
    153,259.65/211,595.49 = 104,942.43/x
  3. Step 3: Cross multiply
    153,259.65x = 211,595.49 × 104,942.43
  4. Step 4: Simplify right side
    153,259.65x = 22,205,344,897.64
  5. Step 5: Solve for x
    x = 22,205,344,897.64/153,259.65
  6. Step 6: Final answer
    x = 144,887.09

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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.