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Finding the Fourth Proportional to 186,549.83, 257,447.89 and 104,903.78

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Solution

The fourth proportional to 186,549.83, 257,447.89 and 104,903.78 is: 144,772.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,549.83 : 257,447.89 = 104,903.78 : x
  2. Step 2: Convert to fraction form
    186,549.83/257,447.89 = 104,903.78/x
  3. Step 3: Cross multiply
    186,549.83x = 257,447.89 × 104,903.78
  4. Step 4: Simplify right side
    186,549.83x = 27,007,255,952.96
  5. Step 5: Solve for x
    x = 27,007,255,952.96/186,549.83
  6. Step 6: Final answer
    x = 144,772.34

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1.5x scale

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.