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Finding the Fourth Proportional to 191,397.60, 264,123.18 and 106,512.84

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Solution

The fourth proportional to 191,397.60, 264,123.18 and 106,512.84 is: 146,984.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,397.60 : 264,123.18 = 106,512.84 : x
  2. Step 2: Convert to fraction form
    191,397.60/264,123.18 = 106,512.84/x
  3. Step 3: Cross multiply
    191,397.60x = 264,123.18 × 106,512.84
  4. Step 4: Simplify right side
    191,397.60x = 28,132,510,011.63
  5. Step 5: Solve for x
    x = 28,132,510,011.63/191,397.60
  6. Step 6: Final answer
    x = 146,984.65

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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.