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Finding the Fourth Proportional to 229,877.43, 317,202.99 and 127,878.79

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Solution

The fourth proportional to 229,877.43, 317,202.99 and 127,878.79 is: 176,457.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,877.43 : 317,202.99 = 127,878.79 : x
  2. Step 2: Convert to fraction form
    229,877.43/317,202.99 = 127,878.79/x
  3. Step 3: Cross multiply
    229,877.43x = 317,202.99 × 127,878.79
  4. Step 4: Simplify right side
    229,877.43x = 40,563,532,959.57
  5. Step 5: Solve for x
    x = 40,563,532,959.57/229,877.43
  6. Step 6: Final answer
    x = 176,457.23

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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.