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Finding the Fourth Proportional to 156,237.66, 215,086.59 and 149,097.11

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Solution

The fourth proportional to 156,237.66, 215,086.59 and 149,097.11 is: 205,256.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,237.66 : 215,086.59 = 149,097.11 : x
  2. Step 2: Convert to fraction form
    156,237.66/215,086.59 = 149,097.11/x
  3. Step 3: Cross multiply
    156,237.66x = 215,086.59 × 149,097.11
  4. Step 4: Simplify right side
    156,237.66x = 32,068,787,893.32
  5. Step 5: Solve for x
    x = 32,068,787,893.32/156,237.66
  6. Step 6: Final answer
    x = 205,256.45

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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.