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Finding the Fourth Proportional to 313,097.98, 432,066.68 and 173,391.74

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Solution

The fourth proportional to 313,097.98, 432,066.68 and 173,391.74 is: 239,275.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,097.98 : 432,066.68 = 173,391.74 : x
  2. Step 2: Convert to fraction form
    313,097.98/432,066.68 = 173,391.74/x
  3. Step 3: Cross multiply
    313,097.98x = 432,066.68 × 173,391.74
  4. Step 4: Simplify right side
    313,097.98x = 74,916,793,172.06
  5. Step 5: Solve for x
    x = 74,916,793,172.06/313,097.98
  6. Step 6: Final answer
    x = 239,275.87

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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.