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Finding the Fourth Proportional to 219,492.86, 302,895.72 and 122,696.24

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Solution

The fourth proportional to 219,492.86, 302,895.72 and 122,696.24 is: 169,318.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,492.86 : 302,895.72 = 122,696.24 : x
  2. Step 2: Convert to fraction form
    219,492.86/302,895.72 = 122,696.24/x
  3. Step 3: Cross multiply
    219,492.86x = 302,895.72 × 122,696.24
  4. Step 4: Simplify right side
    219,492.86x = 37,164,165,956.09
  5. Step 5: Solve for x
    x = 37,164,165,956.09/219,492.86
  6. Step 6: Final answer
    x = 169,318.34

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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.