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Finding the Fourth Proportional to 356,438.70, 534,802.05 and 156,797.10

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Solution

The fourth proportional to 356,438.70, 534,802.05 and 156,797.10 is: 235,259.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,438.70 : 534,802.05 = 156,797.10 : x
  2. Step 2: Convert to fraction form
    356,438.70/534,802.05 = 156,797.10/x
  3. Step 3: Cross multiply
    356,438.70x = 534,802.05 × 156,797.10
  4. Step 4: Simplify right side
    356,438.70x = 83,855,410,514.06
  5. Step 5: Solve for x
    x = 83,855,410,514.06/356,438.70
  6. Step 6: Final answer
    x = 235,259.00

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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.