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Finding the Fourth Proportional to 174,015.80, 261,023.70 and 121,527.80

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Solution

The fourth proportional to 174,015.80, 261,023.70 and 121,527.80 is: 182,291.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,015.80 : 261,023.70 = 121,527.80 : x
  2. Step 2: Convert to fraction form
    174,015.80/261,023.70 = 121,527.80/x
  3. Step 3: Cross multiply
    174,015.80x = 261,023.70 × 121,527.80
  4. Step 4: Simplify right side
    174,015.80x = 31,721,636,008.86
  5. Step 5: Solve for x
    x = 31,721,636,008.86/174,015.80
  6. Step 6: Final answer
    x = 182,291.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.