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Finding the Fourth Proportional to 92,445.30, 127,599.30 and 56,651.40

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Solution

The fourth proportional to 92,445.30, 127,599.30 and 56,651.40 is: 78,194.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,445.30 : 127,599.30 = 56,651.40 : x
  2. Step 2: Convert to fraction form
    92,445.30/127,599.30 = 56,651.40/x
  3. Step 3: Cross multiply
    92,445.30x = 127,599.30 × 56,651.40
  4. Step 4: Simplify right side
    92,445.30x = 7,228,678,984.02
  5. Step 5: Solve for x
    x = 7,228,678,984.02/92,445.30
  6. Step 6: Final answer
    x = 78,194.12

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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.