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Finding the Fourth Proportional to 92,792.70, 128,060.10 and 52,508.16

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Solution

The fourth proportional to 92,792.70, 128,060.10 and 52,508.16 is: 72,464.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,792.70 : 128,060.10 = 52,508.16 : x
  2. Step 2: Convert to fraction form
    92,792.70/128,060.10 = 52,508.16/x
  3. Step 3: Cross multiply
    92,792.70x = 128,060.10 × 52,508.16
  4. Step 4: Simplify right side
    92,792.70x = 6,724,200,220.42
  5. Step 5: Solve for x
    x = 6,724,200,220.42/92,792.70
  6. Step 6: Final answer
    x = 72,464.75

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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.