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Finding the Fourth Proportional to 256,068.91, 353,373.15 and 148,648.96

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Solution

The fourth proportional to 256,068.91, 353,373.15 and 148,648.96 is: 205,134.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,068.91 : 353,373.15 = 148,648.96 : x
  2. Step 2: Convert to fraction form
    256,068.91/353,373.15 = 148,648.96/x
  3. Step 3: Cross multiply
    256,068.91x = 353,373.15 × 148,648.96
  4. Step 4: Simplify right side
    256,068.91x = 52,528,551,239.42
  5. Step 5: Solve for x
    x = 52,528,551,239.42/256,068.91
  6. Step 6: Final answer
    x = 205,134.44

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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.