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Finding the Fourth Proportional to 85,714.96, 118,270.08 and 55,496.08

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Solution

The fourth proportional to 85,714.96, 118,270.08 and 55,496.08 is: 76,573.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,714.96 : 118,270.08 = 55,496.08 : x
  2. Step 2: Convert to fraction form
    85,714.96/118,270.08 = 55,496.08/x
  3. Step 3: Cross multiply
    85,714.96x = 118,270.08 × 55,496.08
  4. Step 4: Simplify right side
    85,714.96x = 6,563,525,821.29
  5. Step 5: Solve for x
    x = 6,563,525,821.29/85,714.96
  6. Step 6: Final answer
    x = 76,573.87

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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.