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Finding the Fourth Proportional to 96,380, 133,018.40 and 55,536.18

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Solution

The fourth proportional to 96,380, 133,018.40 and 55,536.18 is: 76,648.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,380 : 133,018.40 = 55,536.18 : x
  2. Step 2: Convert to fraction form
    96,380/133,018.40 = 55,536.18/x
  3. Step 3: Cross multiply
    96,380x = 133,018.40 × 55,536.18
  4. Step 4: Simplify right side
    96,380x = 7,387,333,805.71
  5. Step 5: Solve for x
    x = 7,387,333,805.71/96,380
  6. Step 6: Final answer
    x = 76,648.00

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.