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Finding the Fourth Proportional to 92,934.42, 128,260.45 and 55,208.67

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Solution

The fourth proportional to 92,934.42, 128,260.45 and 55,208.67 is: 76,194.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,934.42 : 128,260.45 = 55,208.67 : x
  2. Step 2: Convert to fraction form
    92,934.42/128,260.45 = 55,208.67/x
  3. Step 3: Cross multiply
    92,934.42x = 128,260.45 × 55,208.67
  4. Step 4: Simplify right side
    92,934.42x = 7,081,088,857.05
  5. Step 5: Solve for x
    x = 7,081,088,857.05/92,934.42
  6. Step 6: Final answer
    x = 76,194.47

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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.