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Finding the Fourth Proportional to 388,847.63, 583,270.54 and 152,023.79

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Solution

The fourth proportional to 388,847.63, 583,270.54 and 152,023.79 is: 228,035.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,847.63 : 583,270.54 = 152,023.79 : x
  2. Step 2: Convert to fraction form
    388,847.63/583,270.54 = 152,023.79/x
  3. Step 3: Cross multiply
    388,847.63x = 583,270.54 × 152,023.79
  4. Step 4: Simplify right side
    388,847.63x = 88,670,999,164.26
  5. Step 5: Solve for x
    x = 88,670,999,164.26/388,847.63
  6. Step 6: Final answer
    x = 228,035.33

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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.