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Finding the Fourth Proportional to 219,246.66, 328,872.47 and 77,096.16

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Solution

The fourth proportional to 219,246.66, 328,872.47 and 77,096.16 is: 115,645.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,246.66 : 328,872.47 = 77,096.16 : x
  2. Step 2: Convert to fraction form
    219,246.66/328,872.47 = 77,096.16/x
  3. Step 3: Cross multiply
    219,246.66x = 328,872.47 × 77,096.16
  4. Step 4: Simplify right side
    219,246.66x = 25,354,804,181.23
  5. Step 5: Solve for x
    x = 25,354,804,181.23/219,246.66
  6. Step 6: Final answer
    x = 115,645.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.