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Finding the Fourth Proportional to 354,263.61, 531,280.26 and 117,542.73

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Solution

The fourth proportional to 354,263.61, 531,280.26 and 117,542.73 is: 176,275.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,263.61 : 531,280.26 = 117,542.73 : x
  2. Step 2: Convert to fraction form
    354,263.61/531,280.26 = 117,542.73/x
  3. Step 3: Cross multiply
    354,263.61x = 531,280.26 × 117,542.73
  4. Step 4: Simplify right side
    354,263.61x = 62,448,132,155.51
  5. Step 5: Solve for x
    x = 62,448,132,155.51/354,263.61
  6. Step 6: Final answer
    x = 176,275.89

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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.