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Finding the Fourth Proportional to 76,261.52, 105,184.68 and 52,392.08

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Solution

The fourth proportional to 76,261.52, 105,184.68 and 52,392.08 is: 72,262.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,261.52 : 105,184.68 = 52,392.08 : x
  2. Step 2: Convert to fraction form
    76,261.52/105,184.68 = 52,392.08/x
  3. Step 3: Cross multiply
    76,261.52x = 105,184.68 × 52,392.08
  4. Step 4: Simplify right side
    76,261.52x = 5,510,844,169.33
  5. Step 5: Solve for x
    x = 5,510,844,169.33/76,261.52
  6. Step 6: Final answer
    x = 72,262.45

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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.