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Finding the Fourth Proportional to 53,670.30, 80,436.60 and 29,977.80

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Solution

The fourth proportional to 53,670.30, 80,436.60 and 29,977.80 is: 44,928.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,670.30 : 80,436.60 = 29,977.80 : x
  2. Step 2: Convert to fraction form
    53,670.30/80,436.60 = 29,977.80/x
  3. Step 3: Cross multiply
    53,670.30x = 80,436.60 × 29,977.80
  4. Step 4: Simplify right side
    53,670.30x = 2,411,312,307.48
  5. Step 5: Solve for x
    x = 2,411,312,307.48/53,670.30
  6. Step 6: Final answer
    x = 44,928.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.