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Finding the Fourth Proportional to 186,803.76, 279,831.32 and 176,991.92

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Solution

The fourth proportional to 186,803.76, 279,831.32 and 176,991.92 is: 265,133.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,803.76 : 279,831.32 = 176,991.92 : x
  2. Step 2: Convert to fraction form
    186,803.76/279,831.32 = 176,991.92/x
  3. Step 3: Cross multiply
    186,803.76x = 279,831.32 × 176,991.92
  4. Step 4: Simplify right side
    186,803.76x = 49,527,882,602.93
  5. Step 5: Solve for x
    x = 49,527,882,602.93/186,803.76
  6. Step 6: Final answer
    x = 265,133.22

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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.