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Finding the Fourth Proportional to 118,308.59, 163,263.64 and 67,320.17

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Solution

The fourth proportional to 118,308.59, 163,263.64 and 67,320.17 is: 92,900.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,308.59 : 163,263.64 = 67,320.17 : x
  2. Step 2: Convert to fraction form
    118,308.59/163,263.64 = 67,320.17/x
  3. Step 3: Cross multiply
    118,308.59x = 163,263.64 × 67,320.17
  4. Step 4: Simplify right side
    118,308.59x = 10,990,935,999.62
  5. Step 5: Solve for x
    x = 10,990,935,999.62/118,308.59
  6. Step 6: Final answer
    x = 92,900.57

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1.5x scale

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.