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Finding the Fourth Proportional to 92,962.61, 128,288.02 and 52,684.04

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Solution

The fourth proportional to 92,962.61, 128,288.02 and 52,684.04 is: 72,703.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,962.61 : 128,288.02 = 52,684.04 : x
  2. Step 2: Convert to fraction form
    92,962.61/128,288.02 = 52,684.04/x
  3. Step 3: Cross multiply
    92,962.61x = 128,288.02 × 52,684.04
  4. Step 4: Simplify right side
    92,962.61x = 6,758,731,177.20
  5. Step 5: Solve for x
    x = 6,758,731,177.20/92,962.61
  6. Step 6: Final answer
    x = 72,703.76

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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.