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Finding the Fourth Proportional to 186,422.40, 257,315.40 and 168,051.60

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Solution

The fourth proportional to 186,422.40, 257,315.40 and 168,051.60 is: 231,958.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,422.40 : 257,315.40 = 168,051.60 : x
  2. Step 2: Convert to fraction form
    186,422.40/257,315.40 = 168,051.60/x
  3. Step 3: Cross multiply
    186,422.40x = 257,315.40 × 168,051.60
  4. Step 4: Simplify right side
    186,422.40x = 43,242,264,674.64
  5. Step 5: Solve for x
    x = 43,242,264,674.64/186,422.40
  6. Step 6: Final answer
    x = 231,958.52

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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.