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Finding the Fourth Proportional to 191,462.40, 287,193.60 and 151,804.80

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Solution

The fourth proportional to 191,462.40, 287,193.60 and 151,804.80 is: 227,707.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,462.40 : 287,193.60 = 151,804.80 : x
  2. Step 2: Convert to fraction form
    191,462.40/287,193.60 = 151,804.80/x
  3. Step 3: Cross multiply
    191,462.40x = 287,193.60 × 151,804.80
  4. Step 4: Simplify right side
    191,462.40x = 43,597,367,009.28
  5. Step 5: Solve for x
    x = 43,597,367,009.28/191,462.40
  6. Step 6: Final answer
    x = 227,707.20

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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.