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Finding the Fourth Proportional to 316,750.34, 475,075.99 and 103,516.56

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Solution

The fourth proportional to 316,750.34, 475,075.99 and 103,516.56 is: 155,258.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,750.34 : 475,075.99 = 103,516.56 : x
  2. Step 2: Convert to fraction form
    316,750.34/475,075.99 = 103,516.56/x
  3. Step 3: Cross multiply
    316,750.34x = 475,075.99 × 103,516.56
  4. Step 4: Simplify right side
    316,750.34x = 49,178,232,223.39
  5. Step 5: Solve for x
    x = 49,178,232,223.39/316,750.34
  6. Step 6: Final answer
    x = 155,258.66

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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.