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Finding the Fourth Proportional to 127,907.80, 191,789.70 and 49,024.60

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Solution

The fourth proportional to 127,907.80, 191,789.70 and 49,024.60 is: 73,509.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,907.80 : 191,789.70 = 49,024.60 : x
  2. Step 2: Convert to fraction form
    127,907.80/191,789.70 = 49,024.60/x
  3. Step 3: Cross multiply
    127,907.80x = 191,789.70 × 49,024.60
  4. Step 4: Simplify right side
    127,907.80x = 9,402,413,326.62
  5. Step 5: Solve for x
    x = 9,402,413,326.62/127,907.80
  6. Step 6: Final answer
    x = 73,509.30

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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.