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Finding the Fourth Proportional to 92,763.48, 128,006.29 and 54,524.46

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Solution

The fourth proportional to 92,763.48, 128,006.29 and 54,524.46 is: 75,239.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,763.48 : 128,006.29 = 54,524.46 : x
  2. Step 2: Convert to fraction form
    92,763.48/128,006.29 = 54,524.46/x
  3. Step 3: Cross multiply
    92,763.48x = 128,006.29 × 54,524.46
  4. Step 4: Simplify right side
    92,763.48x = 6,979,473,838.85
  5. Step 5: Solve for x
    x = 6,979,473,838.85/92,763.48
  6. Step 6: Final answer
    x = 75,239.46

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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.