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Finding the Fourth Proportional to 111,097.80, 166,646.70 and 48,768.30

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Solution

The fourth proportional to 111,097.80, 166,646.70 and 48,768.30 is: 73,152.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,097.80 : 166,646.70 = 48,768.30 : x
  2. Step 2: Convert to fraction form
    111,097.80/166,646.70 = 48,768.30/x
  3. Step 3: Cross multiply
    111,097.80x = 166,646.70 × 48,768.30
  4. Step 4: Simplify right side
    111,097.80x = 8,127,076,259.61
  5. Step 5: Solve for x
    x = 8,127,076,259.61/111,097.80
  6. Step 6: Final answer
    x = 73,152.45

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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.