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Finding the Fourth Proportional to 260,502.90, 359,496.54 and 153,075.30

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Solution

The fourth proportional to 260,502.90, 359,496.54 and 153,075.30 is: 211,245.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,502.90 : 359,496.54 = 153,075.30 : x
  2. Step 2: Convert to fraction form
    260,502.90/359,496.54 = 153,075.30/x
  3. Step 3: Cross multiply
    260,502.90x = 359,496.54 × 153,075.30
  4. Step 4: Simplify right side
    260,502.90x = 55,030,040,709.46
  5. Step 5: Solve for x
    x = 55,030,040,709.46/260,502.90
  6. Step 6: Final answer
    x = 211,245.41

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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.