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Finding the Fourth Proportional to 127,312.14, 190,977.92 and 38,572.98

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Solution

The fourth proportional to 127,312.14, 190,977.92 and 38,572.98 is: 57,862.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,312.14 : 190,977.92 = 38,572.98 : x
  2. Step 2: Convert to fraction form
    127,312.14/190,977.92 = 38,572.98/x
  3. Step 3: Cross multiply
    127,312.14x = 190,977.92 × 38,572.98
  4. Step 4: Simplify right side
    127,312.14x = 7,366,587,488.60
  5. Step 5: Solve for x
    x = 7,366,587,488.60/127,312.14
  6. Step 6: Final answer
    x = 57,862.41

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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.