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Finding the Fourth Proportional to 357,507.09, 536,260.16 and 91,267.59

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Solution

The fourth proportional to 357,507.09, 536,260.16 and 91,267.59 is: 136,901.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,507.09 : 536,260.16 = 91,267.59 : x
  2. Step 2: Convert to fraction form
    357,507.09/536,260.16 = 91,267.59/x
  3. Step 3: Cross multiply
    357,507.09x = 536,260.16 × 91,267.59
  4. Step 4: Simplify right side
    357,507.09x = 48,943,171,959.88
  5. Step 5: Solve for x
    x = 48,943,171,959.88/357,507.09
  6. Step 6: Final answer
    x = 136,901.26

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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.