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Finding the Fourth Proportional to 316,760.69, 475,041.69 and 103,480.00

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Solution

The fourth proportional to 316,760.69, 475,041.69 and 103,480.00 is: 155,187.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,760.69 : 475,041.69 = 103,480.00 : x
  2. Step 2: Convert to fraction form
    316,760.69/475,041.69 = 103,480.00/x
  3. Step 3: Cross multiply
    316,760.69x = 475,041.69 × 103,480.00
  4. Step 4: Simplify right side
    316,760.69x = 49,157,312,893.60
  5. Step 5: Solve for x
    x = 49,157,312,893.60/316,760.69
  6. Step 6: Final answer
    x = 155,187.54

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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.