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Finding the Fourth Proportional to 292,463.20, 438,358.51 and 134,359.48

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Solution

The fourth proportional to 292,463.20, 438,358.51 and 134,359.48 is: 201,384.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,463.20 : 438,358.51 = 134,359.48 : x
  2. Step 2: Convert to fraction form
    292,463.20/438,358.51 = 134,359.48/x
  3. Step 3: Cross multiply
    292,463.20x = 438,358.51 × 134,359.48
  4. Step 4: Simplify right side
    292,463.20x = 58,897,621,457.17
  5. Step 5: Solve for x
    x = 58,897,621,457.17/292,463.20
  6. Step 6: Final answer
    x = 201,384.73

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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.