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Finding the Fourth Proportional to 114,561.70, 171,842.55 and 79,569.70

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Solution

The fourth proportional to 114,561.70, 171,842.55 and 79,569.70 is: 119,354.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,561.70 : 171,842.55 = 79,569.70 : x
  2. Step 2: Convert to fraction form
    114,561.70/171,842.55 = 79,569.70/x
  3. Step 3: Cross multiply
    114,561.70x = 171,842.55 × 79,569.70
  4. Step 4: Simplify right side
    114,561.70x = 13,673,460,150.74
  5. Step 5: Solve for x
    x = 13,673,460,150.74/114,561.70
  6. Step 6: Final answer
    x = 119,354.55

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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.