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Finding the Fourth Proportional to 272,518.81, 375,686.21 and 191,695.48

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Solution

The fourth proportional to 272,518.81, 375,686.21 and 191,695.48 is: 264,265.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,518.81 : 375,686.21 = 191,695.48 : x
  2. Step 2: Convert to fraction form
    272,518.81/375,686.21 = 191,695.48/x
  3. Step 3: Cross multiply
    272,518.81x = 375,686.21 × 191,695.48
  4. Step 4: Simplify right side
    272,518.81x = 72,017,348,336.07
  5. Step 5: Solve for x
    x = 72,017,348,336.07/272,518.81
  6. Step 6: Final answer
    x = 264,265.60

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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.