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Finding the Fourth Proportional to 114,304.79, 157,742.85 and 68,411.69

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Solution

The fourth proportional to 114,304.79, 157,742.85 and 68,411.69 is: 94,409.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,304.79 : 157,742.85 = 68,411.69 : x
  2. Step 2: Convert to fraction form
    114,304.79/157,742.85 = 68,411.69/x
  3. Step 3: Cross multiply
    114,304.79x = 157,742.85 × 68,411.69
  4. Step 4: Simplify right side
    114,304.79x = 10,791,454,953.92
  5. Step 5: Solve for x
    x = 10,791,454,953.92/114,304.79
  6. Step 6: Final answer
    x = 94,409.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.