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Finding the Fourth Proportional to 272,519.19, 375,686.72 and 191,695.86

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Solution

The fourth proportional to 272,519.19, 375,686.72 and 191,695.86 is: 264,266.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,519.19 : 375,686.72 = 191,695.86 : x
  2. Step 2: Convert to fraction form
    272,519.19/375,686.72 = 191,695.86/x
  3. Step 3: Cross multiply
    272,519.19x = 375,686.72 × 191,695.86
  4. Step 4: Simplify right side
    272,519.19x = 72,017,588,880.98
  5. Step 5: Solve for x
    x = 72,017,588,880.98/272,519.19
  6. Step 6: Final answer
    x = 264,266.12

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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.