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Finding the Fourth Proportional to 219,492.72, 302,900.28 and 118,890.48

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Solution

The fourth proportional to 219,492.72, 302,900.28 and 118,890.48 is: 164,069.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,492.72 : 302,900.28 = 118,890.48 : x
  2. Step 2: Convert to fraction form
    219,492.72/302,900.28 = 118,890.48/x
  3. Step 3: Cross multiply
    219,492.72x = 302,900.28 × 118,890.48
  4. Step 4: Simplify right side
    219,492.72x = 36,011,959,681.33
  5. Step 5: Solve for x
    x = 36,011,959,681.33/219,492.72
  6. Step 6: Final answer
    x = 164,069.04

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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.