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Finding the Fourth Proportional to 123,612.60, 185,289.30 and 48,703.80

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Solution

The fourth proportional to 123,612.60, 185,289.30 and 48,703.80 is: 73,004.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,612.60 : 185,289.30 = 48,703.80 : x
  2. Step 2: Convert to fraction form
    123,612.60/185,289.30 = 48,703.80/x
  3. Step 3: Cross multiply
    123,612.60x = 185,289.30 × 48,703.80
  4. Step 4: Simplify right side
    123,612.60x = 9,024,293,009.34
  5. Step 5: Solve for x
    x = 9,024,293,009.34/123,612.60
  6. Step 6: Final answer
    x = 73,004.64

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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.