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Finding the Fourth Proportional to 215,158.91, 296,919.30 and 118,364.11

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Solution

The fourth proportional to 215,158.91, 296,919.30 and 118,364.11 is: 163,342.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,158.91 : 296,919.30 = 118,364.11 : x
  2. Step 2: Convert to fraction form
    215,158.91/296,919.30 = 118,364.11/x
  3. Step 3: Cross multiply
    215,158.91x = 296,919.30 × 118,364.11
  4. Step 4: Simplify right side
    215,158.91x = 35,144,588,686.32
  5. Step 5: Solve for x
    x = 35,144,588,686.32/215,158.91
  6. Step 6: Final answer
    x = 163,342.47

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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.