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Finding the Fourth Proportional to 98,777.64, 136,313.37 and 55,766.46

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Solution

The fourth proportional to 98,777.64, 136,313.37 and 55,766.46 is: 76,957.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,777.64 : 136,313.37 = 55,766.46 : x
  2. Step 2: Convert to fraction form
    98,777.64/136,313.37 = 55,766.46/x
  3. Step 3: Cross multiply
    98,777.64x = 136,313.37 × 55,766.46
  4. Step 4: Simplify right side
    98,777.64x = 7,601,714,095.57
  5. Step 5: Solve for x
    x = 7,601,714,095.57/98,777.64
  6. Step 6: Final answer
    x = 76,957.84

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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.