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Finding the Fourth Proportional to 170,130.92, 255,253.62 and 75,347.96

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Solution

The fourth proportional to 170,130.92, 255,253.62 and 75,347.96 is: 113,047.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,130.92 : 255,253.62 = 75,347.96 : x
  2. Step 2: Convert to fraction form
    170,130.92/255,253.62 = 75,347.96/x
  3. Step 3: Cross multiply
    170,130.92x = 255,253.62 × 75,347.96
  4. Step 4: Simplify right side
    170,130.92x = 19,232,839,549.62
  5. Step 5: Solve for x
    x = 19,232,839,549.62/170,130.92
  6. Step 6: Final answer
    x = 113,047.29

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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.