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Finding the Fourth Proportional to 92,883.86, 128,218.96 and 62,710.04

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Solution

The fourth proportional to 92,883.86, 128,218.96 and 62,710.04 is: 86,566.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,883.86 : 128,218.96 = 62,710.04 : x
  2. Step 2: Convert to fraction form
    92,883.86/128,218.96 = 62,710.04/x
  3. Step 3: Cross multiply
    92,883.86x = 128,218.96 × 62,710.04
  4. Step 4: Simplify right side
    92,883.86x = 8,040,616,110.36
  5. Step 5: Solve for x
    x = 8,040,616,110.36/92,883.86
  6. Step 6: Final answer
    x = 86,566.34

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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.