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Finding the Fourth Proportional to 160,695.51, 221,736.51 and 89,075.52

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Solution

The fourth proportional to 160,695.51, 221,736.51 and 89,075.52 is: 122,911.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,695.51 : 221,736.51 = 89,075.52 : x
  2. Step 2: Convert to fraction form
    160,695.51/221,736.51 = 89,075.52/x
  3. Step 3: Cross multiply
    160,695.51x = 221,736.51 × 89,075.52
  4. Step 4: Simplify right side
    160,695.51x = 19,751,294,931.24
  5. Step 5: Solve for x
    x = 19,751,294,931.24/160,695.51
  6. Step 6: Final answer
    x = 122,911.31

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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.