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Finding the Fourth Proportional to 356,709.01, 535,057.34 and 120,051.69

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Solution

The fourth proportional to 356,709.01, 535,057.34 and 120,051.69 is: 180,075.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,709.01 : 535,057.34 = 120,051.69 : x
  2. Step 2: Convert to fraction form
    356,709.01/535,057.34 = 120,051.69/x
  3. Step 3: Cross multiply
    356,709.01x = 535,057.34 × 120,051.69
  4. Step 4: Simplify right side
    356,709.01x = 64,234,537,913.90
  5. Step 5: Solve for x
    x = 64,234,537,913.90/356,709.01
  6. Step 6: Final answer
    x = 180,075.46

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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.