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Finding the Fourth Proportional to 127,957.60, 191,936.40 and 115,710.40

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Solution

The fourth proportional to 127,957.60, 191,936.40 and 115,710.40 is: 173,565.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,957.60 : 191,936.40 = 115,710.40 : x
  2. Step 2: Convert to fraction form
    127,957.60/191,936.40 = 115,710.40/x
  3. Step 3: Cross multiply
    127,957.60x = 191,936.40 × 115,710.40
  4. Step 4: Simplify right side
    127,957.60x = 22,209,037,618.56
  5. Step 5: Solve for x
    x = 22,209,037,618.56/127,957.60
  6. Step 6: Final answer
    x = 173,565.60

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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.