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Finding the Fourth Proportional to 495,359.76, 742,942.92 and 158,310

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Solution

The fourth proportional to 495,359.76, 742,942.92 and 158,310 is: 237,434.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,359.76 : 742,942.92 = 158,310 : x
  2. Step 2: Convert to fraction form
    495,359.76/742,942.92 = 158,310/x
  3. Step 3: Cross multiply
    495,359.76x = 742,942.92 × 158,310
  4. Step 4: Simplify right side
    495,359.76x = 117,615,293,665.20
  5. Step 5: Solve for x
    x = 117,615,293,665.20/495,359.76
  6. Step 6: Final answer
    x = 237,434.09

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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.