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Finding the Fourth Proportional to 53,274.56, 79,925.68 and 43,802.49

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Solution

The fourth proportional to 53,274.56, 79,925.68 and 43,802.49 is: 65,715.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,274.56 : 79,925.68 = 43,802.49 : x
  2. Step 2: Convert to fraction form
    53,274.56/79,925.68 = 43,802.49/x
  3. Step 3: Cross multiply
    53,274.56x = 79,925.68 × 43,802.49
  4. Step 4: Simplify right side
    53,274.56x = 3,500,943,798.94
  5. Step 5: Solve for x
    x = 3,500,943,798.94/53,274.56
  6. Step 6: Final answer
    x = 65,715.11

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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.