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Finding the Fourth Proportional to 92,894.64, 128,197.62 and 52,607.54

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Solution

The fourth proportional to 92,894.64, 128,197.62 and 52,607.54 is: 72,600.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,894.64 : 128,197.62 = 52,607.54 : x
  2. Step 2: Convert to fraction form
    92,894.64/128,197.62 = 52,607.54/x
  3. Step 3: Cross multiply
    92,894.64x = 128,197.62 × 52,607.54
  4. Step 4: Simplify right side
    92,894.64x = 6,744,160,781.07
  5. Step 5: Solve for x
    x = 6,744,160,781.07/92,894.64
  6. Step 6: Final answer
    x = 72,600.11

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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.