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Finding the Fourth Proportional to 92,887.88, 128,224.46 and 62,714.04

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Solution

The fourth proportional to 92,887.88, 128,224.46 and 62,714.04 is: 86,571.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,887.88 : 128,224.46 = 62,714.04 : x
  2. Step 2: Convert to fraction form
    92,887.88/128,224.46 = 62,714.04/x
  3. Step 3: Cross multiply
    92,887.88x = 128,224.46 × 62,714.04
  4. Step 4: Simplify right side
    92,887.88x = 8,041,473,913.42
  5. Step 5: Solve for x
    x = 8,041,473,913.42/92,887.88
  6. Step 6: Final answer
    x = 86,571.83

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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.