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Finding the Fourth Proportional to 92,818.89, 128,089.44 and 50,376.51

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Solution

The fourth proportional to 92,818.89, 128,089.44 and 50,376.51 is: 69,519.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,818.89 : 128,089.44 = 50,376.51 : x
  2. Step 2: Convert to fraction form
    92,818.89/128,089.44 = 50,376.51/x
  3. Step 3: Cross multiply
    92,818.89x = 128,089.44 × 50,376.51
  4. Step 4: Simplify right side
    92,818.89x = 6,452,698,955.05
  5. Step 5: Solve for x
    x = 6,452,698,955.05/92,818.89
  6. Step 6: Final answer
    x = 69,519.24

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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.