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Finding the Fourth Proportional to 358,957.60, 538,247.76 and 159,191.62

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Solution

The fourth proportional to 358,957.60, 538,247.76 and 159,191.62 is: 238,703.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,957.60 : 538,247.76 = 159,191.62 : x
  2. Step 2: Convert to fraction form
    358,957.60/538,247.76 = 159,191.62/x
  3. Step 3: Cross multiply
    358,957.60x = 538,247.76 × 159,191.62
  4. Step 4: Simplify right side
    358,957.60x = 85,684,532,875.77
  5. Step 5: Solve for x
    x = 85,684,532,875.77/358,957.60
  6. Step 6: Final answer
    x = 238,703.77

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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.