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Finding the Fourth Proportional to 114,302.79, 157,740.09 and 68,409.69

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Solution

The fourth proportional to 114,302.79, 157,740.09 and 68,409.69 is: 94,406.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,302.79 : 157,740.09 = 68,409.69 : x
  2. Step 2: Convert to fraction form
    114,302.79/157,740.09 = 68,409.69/x
  3. Step 3: Cross multiply
    114,302.79x = 157,740.09 × 68,409.69
  4. Step 4: Simplify right side
    114,302.79x = 10,790,950,657.47
  5. Step 5: Solve for x
    x = 10,790,950,657.47/114,302.79
  6. Step 6: Final answer
    x = 94,406.71

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1.5x scale

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.