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Finding the Fourth Proportional to 163,304.64, 225,341.04 and 91,668.96

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Solution

The fourth proportional to 163,304.64, 225,341.04 and 91,668.96 is: 126,492.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,304.64 : 225,341.04 = 91,668.96 : x
  2. Step 2: Convert to fraction form
    163,304.64/225,341.04 = 91,668.96/x
  3. Step 3: Cross multiply
    163,304.64x = 225,341.04 × 91,668.96
  4. Step 4: Simplify right side
    163,304.64x = 20,656,778,782.12
  5. Step 5: Solve for x
    x = 20,656,778,782.12/163,304.64
  6. Step 6: Final answer
    x = 126,492.30

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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.