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Finding the Fourth Proportional to 153,668.88, 212,196.89 and 96,406.64

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Solution

The fourth proportional to 153,668.88, 212,196.89 and 96,406.64 is: 133,125.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,668.88 : 212,196.89 = 96,406.64 : x
  2. Step 2: Convert to fraction form
    153,668.88/212,196.89 = 96,406.64/x
  3. Step 3: Cross multiply
    153,668.88x = 212,196.89 × 96,406.64
  4. Step 4: Simplify right side
    153,668.88x = 20,457,189,195.46
  5. Step 5: Solve for x
    x = 20,457,189,195.46/153,668.88
  6. Step 6: Final answer
    x = 133,125.13

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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.