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Finding the Fourth Proportional to 375,495.05, 563,237.71 and 91,187.93

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Solution

The fourth proportional to 375,495.05, 563,237.71 and 91,187.93 is: 136,780.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,495.05 : 563,237.71 = 91,187.93 : x
  2. Step 2: Convert to fraction form
    375,495.05/563,237.71 = 91,187.93/x
  3. Step 3: Cross multiply
    375,495.05x = 563,237.71 × 91,187.93
  4. Step 4: Simplify right side
    375,495.05x = 51,360,480,872.84
  5. Step 5: Solve for x
    x = 51,360,480,872.84/375,495.05
  6. Step 6: Final answer
    x = 136,780.71

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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.