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Finding the Fourth Proportional to 114,424.60, 171,831.30 and 84,875.80

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Solution

The fourth proportional to 114,424.60, 171,831.30 and 84,875.80 is: 127,457.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,424.60 : 171,831.30 = 84,875.80 : x
  2. Step 2: Convert to fraction form
    114,424.60/171,831.30 = 84,875.80/x
  3. Step 3: Cross multiply
    114,424.60x = 171,831.30 × 84,875.80
  4. Step 4: Simplify right side
    114,424.60x = 14,584,319,052.54
  5. Step 5: Solve for x
    x = 14,584,319,052.54/114,424.60
  6. Step 6: Final answer
    x = 127,457.90

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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.