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Finding the Fourth Proportional to 186,473.79, 257,334.17 and 105,901.31

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Solution

The fourth proportional to 186,473.79, 257,334.17 and 105,901.31 is: 146,144.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,473.79 : 257,334.17 = 105,901.31 : x
  2. Step 2: Convert to fraction form
    186,473.79/257,334.17 = 105,901.31/x
  3. Step 3: Cross multiply
    186,473.79x = 257,334.17 × 105,901.31
  4. Step 4: Simplify right side
    186,473.79x = 27,252,024,688.85
  5. Step 5: Solve for x
    x = 27,252,024,688.85/186,473.79
  6. Step 6: Final answer
    x = 146,144.00

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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.