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Finding the Fourth Proportional to 191,810.40, 287,472.60 and 73,323.60

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Solution

The fourth proportional to 191,810.40, 287,472.60 and 73,323.60 is: 109,892.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,810.40 : 287,472.60 = 73,323.60 : x
  2. Step 2: Convert to fraction form
    191,810.40/287,472.60 = 73,323.60/x
  3. Step 3: Cross multiply
    191,810.40x = 287,472.60 × 73,323.60
  4. Step 4: Simplify right side
    191,810.40x = 21,078,525,933.36
  5. Step 5: Solve for x
    x = 21,078,525,933.36/191,810.40
  6. Step 6: Final answer
    x = 109,892.51

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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.