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Finding the Fourth Proportional to 191,907.30, 287,342.55 and 150,435.30

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Solution

The fourth proportional to 191,907.30, 287,342.55 and 150,435.30 is: 225,246.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,907.30 : 287,342.55 = 150,435.30 : x
  2. Step 2: Convert to fraction form
    191,907.30/287,342.55 = 150,435.30/x
  3. Step 3: Cross multiply
    191,907.30x = 287,342.55 × 150,435.30
  4. Step 4: Simplify right side
    191,907.30x = 43,226,462,712.02
  5. Step 5: Solve for x
    x = 43,226,462,712.02/191,907.30
  6. Step 6: Final answer
    x = 225,246.58

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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.