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Finding the Fourth Proportional to 357,075.60, 535,616.43 and 90,836.34

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Solution

The fourth proportional to 357,075.60, 535,616.43 and 90,836.34 is: 136,255.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,075.60 : 535,616.43 = 90,836.34 : x
  2. Step 2: Convert to fraction form
    357,075.60/535,616.43 = 90,836.34/x
  3. Step 3: Cross multiply
    357,075.60x = 535,616.43 × 90,836.34
  4. Step 4: Simplify right side
    357,075.60x = 48,653,436,145.07
  5. Step 5: Solve for x
    x = 48,653,436,145.07/357,075.60
  6. Step 6: Final answer
    x = 136,255.28

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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.