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Finding the Fourth Proportional to 218,612.12, 301,706.24 and 127,962.59

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Solution

The fourth proportional to 218,612.12, 301,706.24 and 127,962.59 is: 176,600.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,612.12 : 301,706.24 = 127,962.59 : x
  2. Step 2: Convert to fraction form
    218,612.12/301,706.24 = 127,962.59/x
  3. Step 3: Cross multiply
    218,612.12x = 301,706.24 × 127,962.59
  4. Step 4: Simplify right side
    218,612.12x = 38,607,109,741.22
  5. Step 5: Solve for x
    x = 38,607,109,741.22/218,612.12
  6. Step 6: Final answer
    x = 176,600.96

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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.