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Finding the Fourth Proportional to 118,075.45, 165,655.55 and 118,075.45

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Solution

The fourth proportional to 118,075.45, 165,655.55 and 118,075.45 is: 165,655.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,075.45 : 165,655.55 = 118,075.45 : x
  2. Step 2: Convert to fraction form
    118,075.45/165,655.55 = 118,075.45/x
  3. Step 3: Cross multiply
    118,075.45x = 165,655.55 × 118,075.45
  4. Step 4: Simplify right side
    118,075.45x = 19,559,853,611.25
  5. Step 5: Solve for x
    x = 19,559,853,611.25/118,075.45
  6. Step 6: Final answer
    x = 165,655.55

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.