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Finding the Fourth Proportional to 92,792.22, 128,045.44 and 54,553.03

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Solution

The fourth proportional to 92,792.22, 128,045.44 and 54,553.03 is: 75,278.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,792.22 : 128,045.44 = 54,553.03 : x
  2. Step 2: Convert to fraction form
    92,792.22/128,045.44 = 54,553.03/x
  3. Step 3: Cross multiply
    92,792.22x = 128,045.44 × 54,553.03
  4. Step 4: Simplify right side
    92,792.22x = 6,985,266,477.76
  5. Step 5: Solve for x
    x = 6,985,266,477.76/92,792.22
  6. Step 6: Final answer
    x = 75,278.58

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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.