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Finding the Fourth Proportional to 229,605.74, 316,859.72 and 126,244.32

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Solution

The fourth proportional to 229,605.74, 316,859.72 and 126,244.32 is: 174,219.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,605.74 : 316,859.72 = 126,244.32 : x
  2. Step 2: Convert to fraction form
    229,605.74/316,859.72 = 126,244.32/x
  3. Step 3: Cross multiply
    229,605.74x = 316,859.72 × 126,244.32
  4. Step 4: Simplify right side
    229,605.74x = 40,001,739,886.79
  5. Step 5: Solve for x
    x = 40,001,739,886.79/229,605.74
  6. Step 6: Final answer
    x = 174,219.25

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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.