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Finding the Fourth Proportional to 191,216.52, 287,963.09 and 166,554.45

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Solution

The fourth proportional to 191,216.52, 287,963.09 and 166,554.45 is: 250,823.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,216.52 : 287,963.09 = 166,554.45 : x
  2. Step 2: Convert to fraction form
    191,216.52/287,963.09 = 166,554.45/x
  3. Step 3: Cross multiply
    191,216.52x = 287,963.09 × 166,554.45
  4. Step 4: Simplify right side
    191,216.52x = 47,961,534,075.25
  5. Step 5: Solve for x
    x = 47,961,534,075.25/191,216.52
  6. Step 6: Final answer
    x = 250,823.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.