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Finding the Fourth Proportional to 118,007.40, 176,945.50 and 39,078.58

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Solution

The fourth proportional to 118,007.40, 176,945.50 and 39,078.58 is: 58,596.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,007.40 : 176,945.50 = 39,078.58 : x
  2. Step 2: Convert to fraction form
    118,007.40/176,945.50 = 39,078.58/x
  3. Step 3: Cross multiply
    118,007.40x = 176,945.50 × 39,078.58
  4. Step 4: Simplify right side
    118,007.40x = 6,914,778,877.39
  5. Step 5: Solve for x
    x = 6,914,778,877.39/118,007.40
  6. Step 6: Final answer
    x = 58,596.15

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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.