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Finding the Fourth Proportional to 117,505.80, 176,258.70 and 70,849.80

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Solution

The fourth proportional to 117,505.80, 176,258.70 and 70,849.80 is: 106,274.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,505.80 : 176,258.70 = 70,849.80 : x
  2. Step 2: Convert to fraction form
    117,505.80/176,258.70 = 70,849.80/x
  3. Step 3: Cross multiply
    117,505.80x = 176,258.70 × 70,849.80
  4. Step 4: Simplify right side
    117,505.80x = 12,487,893,643.26
  5. Step 5: Solve for x
    x = 12,487,893,643.26/117,505.80
  6. Step 6: Final answer
    x = 106,274.70

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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.