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Finding the Fourth Proportional to 77,376.96, 106,773.60 and 52,260.48

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Solution

The fourth proportional to 77,376.96, 106,773.60 and 52,260.48 is: 72,115.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,376.96 : 106,773.60 = 52,260.48 : x
  2. Step 2: Convert to fraction form
    77,376.96/106,773.60 = 52,260.48/x
  3. Step 3: Cross multiply
    77,376.96x = 106,773.60 × 52,260.48
  4. Step 4: Simplify right side
    77,376.96x = 5,580,039,587.33
  5. Step 5: Solve for x
    x = 5,580,039,587.33/77,376.96
  6. Step 6: Final answer
    x = 72,115.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.