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Finding the Fourth Proportional to 118,008.70, 163,059.16 and 94,330.78

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Solution

The fourth proportional to 118,008.70, 163,059.16 and 94,330.78 is: 130,342.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,008.70 : 163,059.16 = 94,330.78 : x
  2. Step 2: Convert to fraction form
    118,008.70/163,059.16 = 94,330.78/x
  3. Step 3: Cross multiply
    118,008.70x = 163,059.16 × 94,330.78
  4. Step 4: Simplify right side
    118,008.70x = 15,381,497,748.94
  5. Step 5: Solve for x
    x = 15,381,497,748.94/118,008.70
  6. Step 6: Final answer
    x = 130,342.07

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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.