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Finding the Fourth Proportional to 215,376.66, 297,140.06 and 215,044.52

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Solution

The fourth proportional to 215,376.66, 297,140.06 and 215,044.52 is: 296,681.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,376.66 : 297,140.06 = 215,044.52 : x
  2. Step 2: Convert to fraction form
    215,376.66/297,140.06 = 215,044.52/x
  3. Step 3: Cross multiply
    215,376.66x = 297,140.06 × 215,044.52
  4. Step 4: Simplify right side
    215,376.66x = 63,898,341,575.47
  5. Step 5: Solve for x
    x = 63,898,341,575.47/215,376.66
  6. Step 6: Final answer
    x = 296,681.83

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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.