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Finding the Fourth Proportional to 371,611.34, 557,428.58 and 176,821.86

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Solution

The fourth proportional to 371,611.34, 557,428.58 and 176,821.86 is: 265,238.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,611.34 : 557,428.58 = 176,821.86 : x
  2. Step 2: Convert to fraction form
    371,611.34/557,428.58 = 176,821.86/x
  3. Step 3: Cross multiply
    371,611.34x = 557,428.58 × 176,821.86
  4. Step 4: Simplify right side
    371,611.34x = 98,565,558,332.76
  5. Step 5: Solve for x
    x = 98,565,558,332.76/371,611.34
  6. Step 6: Final answer
    x = 265,238.30

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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.