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Finding the Fourth Proportional to 218,228.16, 301,109.70 and 127,566.60

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Solution

The fourth proportional to 218,228.16, 301,109.70 and 127,566.60 is: 176,015.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,228.16 : 301,109.70 = 127,566.60 : x
  2. Step 2: Convert to fraction form
    218,228.16/301,109.70 = 127,566.60/x
  3. Step 3: Cross multiply
    218,228.16x = 301,109.70 × 127,566.60
  4. Step 4: Simplify right side
    218,228.16x = 38,411,540,656.02
  5. Step 5: Solve for x
    x = 38,411,540,656.02/218,228.16
  6. Step 6: Final answer
    x = 176,015.51

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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.