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Finding the Fourth Proportional to 168,012.40, 235,528.40 and 168,012.40

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Solution

The fourth proportional to 168,012.40, 235,528.40 and 168,012.40 is: 235,528.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,012.40 : 235,528.40 = 168,012.40 : x
  2. Step 2: Convert to fraction form
    168,012.40/235,528.40 = 168,012.40/x
  3. Step 3: Cross multiply
    168,012.40x = 235,528.40 × 168,012.40
  4. Step 4: Simplify right side
    168,012.40x = 39,571,691,752.16
  5. Step 5: Solve for x
    x = 39,571,691,752.16/168,012.40
  6. Step 6: Final answer
    x = 235,528.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.