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Finding the Fourth Proportional to 127,293.60, 191,144.40 and 101,215.20

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Solution

The fourth proportional to 127,293.60, 191,144.40 and 101,215.20 is: 151,985.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,293.60 : 191,144.40 = 101,215.20 : x
  2. Step 2: Convert to fraction form
    127,293.60/191,144.40 = 101,215.20/x
  3. Step 3: Cross multiply
    127,293.60x = 191,144.40 × 101,215.20
  4. Step 4: Simplify right side
    127,293.60x = 19,346,718,674.88
  5. Step 5: Solve for x
    x = 19,346,718,674.88/127,293.60
  6. Step 6: Final answer
    x = 151,985.01

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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.