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Finding the Fourth Proportional to 186,463.94, 257,338.80 and 113,862.82

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Solution

The fourth proportional to 186,463.94, 257,338.80 and 113,862.82 is: 157,142.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,463.94 : 257,338.80 = 113,862.82 : x
  2. Step 2: Convert to fraction form
    186,463.94/257,338.80 = 113,862.82/x
  3. Step 3: Cross multiply
    186,463.94x = 257,338.80 × 113,862.82
  4. Step 4: Simplify right side
    186,463.94x = 29,301,321,463.42
  5. Step 5: Solve for x
    x = 29,301,321,463.42/186,463.94
  6. Step 6: Final answer
    x = 157,142.03

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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.