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Finding the Fourth Proportional to 218,612.37, 301,706.58 and 127,962.84

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Solution

The fourth proportional to 218,612.37, 301,706.58 and 127,962.84 is: 176,601.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,612.37 : 301,706.58 = 127,962.84 : x
  2. Step 2: Convert to fraction form
    218,612.37/301,706.58 = 127,962.84/x
  3. Step 3: Cross multiply
    218,612.37x = 301,706.58 × 127,962.84
  4. Step 4: Simplify right side
    218,612.37x = 38,607,229,314.95
  5. Step 5: Solve for x
    x = 38,607,229,314.95/218,612.37
  6. Step 6: Final answer
    x = 176,601.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.