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Finding the Fourth Proportional to 153,265.65, 211,603.77 and 104,948.43

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Solution

The fourth proportional to 153,265.65, 211,603.77 and 104,948.43 is: 144,895.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,265.65 : 211,603.77 = 104,948.43 : x
  2. Step 2: Convert to fraction form
    153,265.65/211,603.77 = 104,948.43/x
  3. Step 3: Cross multiply
    153,265.65x = 211,603.77 × 104,948.43
  4. Step 4: Simplify right side
    153,265.65x = 22,207,483,443.58
  5. Step 5: Solve for x
    x = 22,207,483,443.58/153,265.65
  6. Step 6: Final answer
    x = 144,895.37

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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.