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Finding the Fourth Proportional to 186,897.48, 280,238.49 and 127,804.74

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Solution

The fourth proportional to 186,897.48, 280,238.49 and 127,804.74 is: 191,633.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,897.48 : 280,238.49 = 127,804.74 : x
  2. Step 2: Convert to fraction form
    186,897.48/280,238.49 = 127,804.74/x
  3. Step 3: Cross multiply
    186,897.48x = 280,238.49 × 127,804.74
  4. Step 4: Simplify right side
    186,897.48x = 35,815,807,352.44
  5. Step 5: Solve for x
    x = 35,815,807,352.44/186,897.48
  6. Step 6: Final answer
    x = 191,633.44

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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.