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Finding the Fourth Proportional to 557,678.90, 836,521.14 and 136,954.82

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Solution

The fourth proportional to 557,678.90, 836,521.14 and 136,954.82 is: 205,432.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,678.90 : 836,521.14 = 136,954.82 : x
  2. Step 2: Convert to fraction form
    557,678.90/836,521.14 = 136,954.82/x
  3. Step 3: Cross multiply
    557,678.90x = 836,521.14 × 136,954.82
  4. Step 4: Simplify right side
    557,678.90x = 114,565,602,154.90
  5. Step 5: Solve for x
    x = 114,565,602,154.90/557,678.90
  6. Step 6: Final answer
    x = 205,432.92

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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.