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Finding the Fourth Proportional to 475,313.41, 713,128.98 and 155,479.87

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Solution

The fourth proportional to 475,313.41, 713,128.98 and 155,479.87 is: 233,271.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,313.41 : 713,128.98 = 155,479.87 : x
  2. Step 2: Convert to fraction form
    475,313.41/713,128.98 = 155,479.87/x
  3. Step 3: Cross multiply
    475,313.41x = 713,128.98 × 155,479.87
  4. Step 4: Simplify right side
    475,313.41x = 110,877,201,103.63
  5. Step 5: Solve for x
    x = 110,877,201,103.63/475,313.41
  6. Step 6: Final answer
    x = 233,271.77

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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.