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Finding the Fourth Proportional to 301,705.20, 452,557.80 and 91,353.60

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Solution

The fourth proportional to 301,705.20, 452,557.80 and 91,353.60 is: 137,030.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,705.20 : 452,557.80 = 91,353.60 : x
  2. Step 2: Convert to fraction form
    301,705.20/452,557.80 = 91,353.60/x
  3. Step 3: Cross multiply
    301,705.20x = 452,557.80 × 91,353.60
  4. Step 4: Simplify right side
    301,705.20x = 41,342,784,238.08
  5. Step 5: Solve for x
    x = 41,342,784,238.08/301,705.20
  6. Step 6: Final answer
    x = 137,030.40

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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.