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Finding the Fourth Proportional to 154,862.86, 213,484.54 and 109,460.74

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Solution

The fourth proportional to 154,862.86, 213,484.54 and 109,460.74 is: 150,895.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,862.86 : 213,484.54 = 109,460.74 : x
  2. Step 2: Convert to fraction form
    154,862.86/213,484.54 = 109,460.74/x
  3. Step 3: Cross multiply
    154,862.86x = 213,484.54 × 109,460.74
  4. Step 4: Simplify right side
    154,862.86x = 23,368,175,726.96
  5. Step 5: Solve for x
    x = 23,368,175,726.96/154,862.86
  6. Step 6: Final answer
    x = 150,895.93

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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.