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Finding the Fourth Proportional to 170,783.52, 235,159.53 and 154,763.75

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Solution

The fourth proportional to 170,783.52, 235,159.53 and 154,763.75 is: 213,101.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,783.52 : 235,159.53 = 154,763.75 : x
  2. Step 2: Convert to fraction form
    170,783.52/235,159.53 = 154,763.75/x
  3. Step 3: Cross multiply
    170,783.52x = 235,159.53 × 154,763.75
  4. Step 4: Simplify right side
    170,783.52x = 36,394,169,535.24
  5. Step 5: Solve for x
    x = 36,394,169,535.24/170,783.52
  6. Step 6: Final answer
    x = 213,101.18

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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.