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Finding the Fourth Proportional to 118,220.90, 177,347.55 and 39,326.90

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Solution

The fourth proportional to 118,220.90, 177,347.55 and 39,326.90 is: 58,995.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,220.90 : 177,347.55 = 39,326.90 : x
  2. Step 2: Convert to fraction form
    118,220.90/177,347.55 = 39,326.90/x
  3. Step 3: Cross multiply
    118,220.90x = 177,347.55 × 39,326.90
  4. Step 4: Simplify right side
    118,220.90x = 6,974,529,364.10
  5. Step 5: Solve for x
    x = 6,974,529,364.10/118,220.90
  6. Step 6: Final answer
    x = 58,995.74

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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.