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Finding the Fourth Proportional to 229,178.08, 316,269.12 and 127,210.11

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Solution

The fourth proportional to 229,178.08, 316,269.12 and 127,210.11 is: 175,551.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,178.08 : 316,269.12 = 127,210.11 : x
  2. Step 2: Convert to fraction form
    229,178.08/316,269.12 = 127,210.11/x
  3. Step 3: Cross multiply
    229,178.08x = 316,269.12 × 127,210.11
  4. Step 4: Simplify right side
    229,178.08x = 40,232,629,544.80
  5. Step 5: Solve for x
    x = 40,232,629,544.80/229,178.08
  6. Step 6: Final answer
    x = 175,551.82

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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.