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Finding the Fourth Proportional to 170,705.70, 256,058.55 and 117,561.60

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Solution

The fourth proportional to 170,705.70, 256,058.55 and 117,561.60 is: 176,342.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,705.70 : 256,058.55 = 117,561.60 : x
  2. Step 2: Convert to fraction form
    170,705.70/256,058.55 = 117,561.60/x
  3. Step 3: Cross multiply
    170,705.70x = 256,058.55 × 117,561.60
  4. Step 4: Simplify right side
    170,705.70x = 30,102,652,831.68
  5. Step 5: Solve for x
    x = 30,102,652,831.68/170,705.70
  6. Step 6: Final answer
    x = 176,342.40

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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.