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Finding the Fourth Proportional to 117,505.60, 176,258.40 and 70,849.60

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Solution

The fourth proportional to 117,505.60, 176,258.40 and 70,849.60 is: 106,274.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,505.60 : 176,258.40 = 70,849.60 : x
  2. Step 2: Convert to fraction form
    117,505.60/176,258.40 = 70,849.60/x
  3. Step 3: Cross multiply
    117,505.60x = 176,258.40 × 70,849.60
  4. Step 4: Simplify right side
    117,505.60x = 12,487,837,136.64
  5. Step 5: Solve for x
    x = 12,487,837,136.64/117,505.60
  6. Step 6: Final answer
    x = 106,274.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.