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Finding the Fourth Proportional to 229,881.49, 317,250.71 and 127,929.67

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Solution

The fourth proportional to 229,881.49, 317,250.71 and 127,929.67 is: 176,550.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,881.49 : 317,250.71 = 127,929.67 : x
  2. Step 2: Convert to fraction form
    229,881.49/317,250.71 = 127,929.67/x
  3. Step 3: Cross multiply
    229,881.49x = 317,250.71 × 127,929.67
  4. Step 4: Simplify right side
    229,881.49x = 40,585,778,637.57
  5. Step 5: Solve for x
    x = 40,585,778,637.57/229,881.49
  6. Step 6: Final answer
    x = 176,550.88

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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.