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Finding the Fourth Proportional to 114,308.64, 157,751.50 and 68,985.80

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Solution

The fourth proportional to 114,308.64, 157,751.50 and 68,985.80 is: 95,203.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,308.64 : 157,751.50 = 68,985.80 : x
  2. Step 2: Convert to fraction form
    114,308.64/157,751.50 = 68,985.80/x
  3. Step 3: Cross multiply
    114,308.64x = 157,751.50 × 68,985.80
  4. Step 4: Simplify right side
    114,308.64x = 10,882,613,632.07
  5. Step 5: Solve for x
    x = 10,882,613,632.07/114,308.64
  6. Step 6: Final answer
    x = 95,203.77

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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.