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Finding the Fourth Proportional to 357,343.73, 535,901.78 and 117,401.93

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Solution

The fourth proportional to 357,343.73, 535,901.78 and 117,401.93 is: 176,065.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,343.73 : 535,901.78 = 117,401.93 : x
  2. Step 2: Convert to fraction form
    357,343.73/535,901.78 = 117,401.93/x
  3. Step 3: Cross multiply
    357,343.73x = 535,901.78 × 117,401.93
  4. Step 4: Simplify right side
    357,343.73x = 62,915,900,876.43
  5. Step 5: Solve for x
    x = 62,915,900,876.43/357,343.73
  6. Step 6: Final answer
    x = 176,065.50

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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.