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Finding the Fourth Proportional to 127,606, 176,096.28 and 71,021.02

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Solution

The fourth proportional to 127,606, 176,096.28 and 71,021.02 is: 98,009.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,606 : 176,096.28 = 71,021.02 : x
  2. Step 2: Convert to fraction form
    127,606/176,096.28 = 71,021.02/x
  3. Step 3: Cross multiply
    127,606x = 176,096.28 × 71,021.02
  4. Step 4: Simplify right side
    127,606x = 12,506,537,423.81
  5. Step 5: Solve for x
    x = 12,506,537,423.81/127,606
  6. Step 6: Final answer
    x = 98,009.01

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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.