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Finding the Fourth Proportional to 301,838.60, 452,642.70 and 91,406.60

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Solution

The fourth proportional to 301,838.60, 452,642.70 and 91,406.60 is: 137,075.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,838.60 : 452,642.70 = 91,406.60 : x
  2. Step 2: Convert to fraction form
    301,838.60/452,642.70 = 91,406.60/x
  3. Step 3: Cross multiply
    301,838.60x = 452,642.70 × 91,406.60
  4. Step 4: Simplify right side
    301,838.60x = 41,374,530,221.82
  5. Step 5: Solve for x
    x = 41,374,530,221.82/301,838.60
  6. Step 6: Final answer
    x = 137,075.01

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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.