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Finding the Fourth Proportional to 117,914.20, 176,871.30 and 39,036.40

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Solution

The fourth proportional to 117,914.20, 176,871.30 and 39,036.40 is: 58,554.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,914.20 : 176,871.30 = 39,036.40 : x
  2. Step 2: Convert to fraction form
    117,914.20/176,871.30 = 39,036.40/x
  3. Step 3: Cross multiply
    117,914.20x = 176,871.30 × 39,036.40
  4. Step 4: Simplify right side
    117,914.20x = 6,904,418,815.32
  5. Step 5: Solve for x
    x = 6,904,418,815.32/117,914.20
  6. Step 6: Final answer
    x = 58,554.60

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1.5x scale

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.