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Finding the Fourth Proportional to 177,663.40, 266,640.90 and 171,831.40

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Solution

The fourth proportional to 177,663.40, 266,640.90 and 171,831.40 is: 257,888.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,663.40 : 266,640.90 = 171,831.40 : x
  2. Step 2: Convert to fraction form
    177,663.40/266,640.90 = 171,831.40/x
  3. Step 3: Cross multiply
    177,663.40x = 266,640.90 × 171,831.40
  4. Step 4: Simplify right side
    177,663.40x = 45,817,279,144.26
  5. Step 5: Solve for x
    x = 45,817,279,144.26/177,663.40
  6. Step 6: Final answer
    x = 257,888.11

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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.