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Finding the Fourth Proportional to 118,875.67, 164,047.65 and 65,162.95

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Solution

The fourth proportional to 118,875.67, 164,047.65 and 65,162.95 is: 89,924.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,875.67 : 164,047.65 = 65,162.95 : x
  2. Step 2: Convert to fraction form
    118,875.67/164,047.65 = 65,162.95/x
  3. Step 3: Cross multiply
    118,875.67x = 164,047.65 × 65,162.95
  4. Step 4: Simplify right side
    118,875.67x = 10,689,828,160.09
  5. Step 5: Solve for x
    x = 10,689,828,160.09/118,875.67
  6. Step 6: Final answer
    x = 89,924.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.