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Finding the Fourth Proportional to 316,358.16, 436,574.22 and 173,118.22

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Solution

The fourth proportional to 316,358.16, 436,574.22 and 173,118.22 is: 238,903.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,358.16 : 436,574.22 = 173,118.22 : x
  2. Step 2: Convert to fraction form
    316,358.16/436,574.22 = 173,118.22/x
  3. Step 3: Cross multiply
    316,358.16x = 436,574.22 × 173,118.22
  4. Step 4: Simplify right side
    316,358.16x = 75,578,951,864.29
  5. Step 5: Solve for x
    x = 75,578,951,864.29/316,358.16
  6. Step 6: Final answer
    x = 238,903.12

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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.