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Finding the Fourth Proportional to 480,365.68, 720,548.52 and 125,376.60

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Solution

The fourth proportional to 480,365.68, 720,548.52 and 125,376.60 is: 188,064.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,365.68 : 720,548.52 = 125,376.60 : x
  2. Step 2: Convert to fraction form
    480,365.68/720,548.52 = 125,376.60/x
  3. Step 3: Cross multiply
    480,365.68x = 720,548.52 × 125,376.60
  4. Step 4: Simplify right side
    480,365.68x = 90,339,923,572.63
  5. Step 5: Solve for x
    x = 90,339,923,572.63/480,365.68
  6. Step 6: Final answer
    x = 188,064.90

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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.