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Finding the Fourth Proportional to 357,495.39, 536,242.61 and 91,255.95

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Solution

The fourth proportional to 357,495.39, 536,242.61 and 91,255.95 is: 136,883.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,495.39 : 536,242.61 = 91,255.95 : x
  2. Step 2: Convert to fraction form
    357,495.39/536,242.61 = 91,255.95/x
  3. Step 3: Cross multiply
    357,495.39x = 536,242.61 × 91,255.95
  4. Step 4: Simplify right side
    357,495.39x = 48,935,329,034.17
  5. Step 5: Solve for x
    x = 48,935,329,034.17/357,495.39
  6. Step 6: Final answer
    x = 136,883.80

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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.