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Finding the Fourth Proportional to 201,415.05, 302,130.77 and 83,075.11

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Solution

The fourth proportional to 201,415.05, 302,130.77 and 83,075.11 is: 124,616.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,415.05 : 302,130.77 = 83,075.11 : x
  2. Step 2: Convert to fraction form
    201,415.05/302,130.77 = 83,075.11/x
  3. Step 3: Cross multiply
    201,415.05x = 302,130.77 × 83,075.11
  4. Step 4: Simplify right side
    201,415.05x = 25,099,546,404.50
  5. Step 5: Solve for x
    x = 25,099,546,404.50/201,415.05
  6. Step 6: Final answer
    x = 124,616.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.