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Finding the Fourth Proportional to 223,495.20, 308,577.60 and 151,934.40

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Solution

The fourth proportional to 223,495.20, 308,577.60 and 151,934.40 is: 209,774.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,495.20 : 308,577.60 = 151,934.40 : x
  2. Step 2: Convert to fraction form
    223,495.20/308,577.60 = 151,934.40/x
  3. Step 3: Cross multiply
    223,495.20x = 308,577.60 × 151,934.40
  4. Step 4: Simplify right side
    223,495.20x = 46,883,552,509.44
  5. Step 5: Solve for x
    x = 46,883,552,509.44/223,495.20
  6. Step 6: Final answer
    x = 209,774.32

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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.