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Finding the Fourth Proportional to 186,590.90, 257,291.95 and 126,056.43

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Solution

The fourth proportional to 186,590.90, 257,291.95 and 126,056.43 is: 173,820.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,590.90 : 257,291.95 = 126,056.43 : x
  2. Step 2: Convert to fraction form
    186,590.90/257,291.95 = 126,056.43/x
  3. Step 3: Cross multiply
    186,590.90x = 257,291.95 × 126,056.43
  4. Step 4: Simplify right side
    186,590.90x = 32,433,304,684.74
  5. Step 5: Solve for x
    x = 32,433,304,684.74/186,590.90
  6. Step 6: Final answer
    x = 173,820.40

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.