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Finding the Fourth Proportional to 123,723.20, 185,503.80 and 48,798.20

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Solution

The fourth proportional to 123,723.20, 185,503.80 and 48,798.20 is: 73,165.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,723.20 : 185,503.80 = 48,798.20 : x
  2. Step 2: Convert to fraction form
    123,723.20/185,503.80 = 48,798.20/x
  3. Step 3: Cross multiply
    123,723.20x = 185,503.80 × 48,798.20
  4. Step 4: Simplify right side
    123,723.20x = 9,052,251,533.16
  5. Step 5: Solve for x
    x = 9,052,251,533.16/123,723.20
  6. Step 6: Final answer
    x = 73,165.35

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1.5x scale

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.