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Finding the Fourth Proportional to 92,941.49, 128,259.57 and 52,662.71

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Solution

The fourth proportional to 92,941.49, 128,259.57 and 52,662.71 is: 72,674.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,941.49 : 128,259.57 = 52,662.71 : x
  2. Step 2: Convert to fraction form
    92,941.49/128,259.57 = 52,662.71/x
  3. Step 3: Cross multiply
    92,941.49x = 128,259.57 × 52,662.71
  4. Step 4: Simplify right side
    92,941.49x = 6,754,496,539.63
  5. Step 5: Solve for x
    x = 6,754,496,539.63/92,941.49
  6. Step 6: Final answer
    x = 72,674.72

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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.