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Finding the Fourth Proportional to 351,075.98, 484,484.19 and 189,931.16

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Solution

The fourth proportional to 351,075.98, 484,484.19 and 189,931.16 is: 262,104.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,075.98 : 484,484.19 = 189,931.16 : x
  2. Step 2: Convert to fraction form
    351,075.98/484,484.19 = 189,931.16/x
  3. Step 3: Cross multiply
    351,075.98x = 484,484.19 × 189,931.16
  4. Step 4: Simplify right side
    351,075.98x = 92,018,644,208.36
  5. Step 5: Solve for x
    x = 92,018,644,208.36/351,075.98
  6. Step 6: Final answer
    x = 262,104.64

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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.