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Finding the Fourth Proportional to 118,101, 162,985.86 and 67,803.24

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Solution

The fourth proportional to 118,101, 162,985.86 and 67,803.24 is: 93,572.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,101 : 162,985.86 = 67,803.24 : x
  2. Step 2: Convert to fraction form
    118,101/162,985.86 = 67,803.24/x
  3. Step 3: Cross multiply
    118,101x = 162,985.86 × 67,803.24
  4. Step 4: Simplify right side
    118,101x = 11,050,969,382.19
  5. Step 5: Solve for x
    x = 11,050,969,382.19/118,101
  6. Step 6: Final answer
    x = 93,572.19

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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.