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Finding the Fourth Proportional to 475,242.37, 712,907.38 and 155,395.88

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Solution

The fourth proportional to 475,242.37, 712,907.38 and 155,395.88 is: 233,108.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,242.37 : 712,907.38 = 155,395.88 : x
  2. Step 2: Convert to fraction form
    475,242.37/712,907.38 = 155,395.88/x
  3. Step 3: Cross multiply
    475,242.37x = 712,907.38 × 155,395.88
  4. Step 4: Simplify right side
    475,242.37x = 110,782,869,053.81
  5. Step 5: Solve for x
    x = 110,782,869,053.81/475,242.37
  6. Step 6: Final answer
    x = 233,108.15

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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.