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Finding the Fourth Proportional to 127,858.76, 176,507.70 and 99,114.92

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Solution

The fourth proportional to 127,858.76, 176,507.70 and 99,114.92 is: 136,827.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,858.76 : 176,507.70 = 99,114.92 : x
  2. Step 2: Convert to fraction form
    127,858.76/176,507.70 = 99,114.92/x
  3. Step 3: Cross multiply
    127,858.76x = 176,507.70 × 99,114.92
  4. Step 4: Simplify right side
    127,858.76x = 17,494,546,564.88
  5. Step 5: Solve for x
    x = 17,494,546,564.88/127,858.76
  6. Step 6: Final answer
    x = 136,827.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.