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Finding the Fourth Proportional to 213,543.55, 294,681.88 and 127,517.00

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Solution

The fourth proportional to 213,543.55, 294,681.88 and 127,517.00 is: 175,968.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,543.55 : 294,681.88 = 127,517.00 : x
  2. Step 2: Convert to fraction form
    213,543.55/294,681.88 = 127,517.00/x
  3. Step 3: Cross multiply
    213,543.55x = 294,681.88 × 127,517.00
  4. Step 4: Simplify right side
    213,543.55x = 37,576,947,977.95
  5. Step 5: Solve for x
    x = 37,576,947,977.95/213,543.55
  6. Step 6: Final answer
    x = 175,968.54

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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.