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Finding the Fourth Proportional to 340,052.63, 510,075.59 and 126,813.15

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Solution

The fourth proportional to 340,052.63, 510,075.59 and 126,813.15 is: 190,218.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,052.63 : 510,075.59 = 126,813.15 : x
  2. Step 2: Convert to fraction form
    340,052.63/510,075.59 = 126,813.15/x
  3. Step 3: Cross multiply
    340,052.63x = 510,075.59 × 126,813.15
  4. Step 4: Simplify right side
    340,052.63x = 64,684,291,671.94
  5. Step 5: Solve for x
    x = 64,684,291,671.94/340,052.63
  6. Step 6: Final answer
    x = 190,218.47

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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.