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Finding the Fourth Proportional to 225,609.46, 311,341.53 and 125,007.46

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Solution

The fourth proportional to 225,609.46, 311,341.53 and 125,007.46 is: 172,510.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,609.46 : 311,341.53 = 125,007.46 : x
  2. Step 2: Convert to fraction form
    225,609.46/311,341.53 = 125,007.46/x
  3. Step 3: Cross multiply
    225,609.46x = 311,341.53 × 125,007.46
  4. Step 4: Simplify right side
    225,609.46x = 38,920,013,857.81
  5. Step 5: Solve for x
    x = 38,920,013,857.81/225,609.46
  6. Step 6: Final answer
    x = 172,510.56

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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.