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Finding the Fourth Proportional to 170,603.60, 255,444.60 and 133,739.60

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Solution

The fourth proportional to 170,603.60, 255,444.60 and 133,739.60 is: 200,248.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,603.60 : 255,444.60 = 133,739.60 : x
  2. Step 2: Convert to fraction form
    170,603.60/255,444.60 = 133,739.60/x
  3. Step 3: Cross multiply
    170,603.60x = 255,444.60 × 133,739.60
  4. Step 4: Simplify right side
    170,603.60x = 34,163,058,626.16
  5. Step 5: Solve for x
    x = 34,163,058,626.16/170,603.60
  6. Step 6: Final answer
    x = 200,248.17

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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.