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Finding the Fourth Proportional to 229,792.95, 317,109.67 and 127,816.21

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Solution

The fourth proportional to 229,792.95, 317,109.67 and 127,816.21 is: 176,383.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,792.95 : 317,109.67 = 127,816.21 : x
  2. Step 2: Convert to fraction form
    229,792.95/317,109.67 = 127,816.21/x
  3. Step 3: Cross multiply
    229,792.95x = 317,109.67 × 127,816.21
  4. Step 4: Simplify right side
    229,792.95x = 40,531,756,250.60
  5. Step 5: Solve for x
    x = 40,531,756,250.60/229,792.95
  6. Step 6: Final answer
    x = 176,383.81

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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.