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Finding the Fourth Proportional to 127,865.60, 191,798.40 and 101,427.20

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Solution

The fourth proportional to 127,865.60, 191,798.40 and 101,427.20 is: 152,140.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,865.60 : 191,798.40 = 101,427.20 : x
  2. Step 2: Convert to fraction form
    127,865.60/191,798.40 = 101,427.20/x
  3. Step 3: Cross multiply
    127,865.60x = 191,798.40 × 101,427.20
  4. Step 4: Simplify right side
    127,865.60x = 19,453,574,676.48
  5. Step 5: Solve for x
    x = 19,453,574,676.48/127,865.60
  6. Step 6: Final answer
    x = 152,140.80

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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.