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Finding the Fourth Proportional to 237,515.64, 356,290.74 and 79,742.76

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Solution

The fourth proportional to 237,515.64, 356,290.74 and 79,742.76 is: 119,619.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    237,515.64 : 356,290.74 = 79,742.76 : x
  2. Step 2: Convert to fraction form
    237,515.64/356,290.74 = 79,742.76/x
  3. Step 3: Cross multiply
    237,515.64x = 356,290.74 × 79,742.76
  4. Step 4: Simplify right side
    237,515.64x = 28,411,606,970.04
  5. Step 5: Solve for x
    x = 28,411,606,970.04/237,515.64
  6. Step 6: Final answer
    x = 119,619.94

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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.