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Finding the Fourth Proportional to 127,674.48, 176,211.78 and 97,402.68

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Solution

The fourth proportional to 127,674.48, 176,211.78 and 97,402.68 is: 134,431.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,674.48 : 176,211.78 = 97,402.68 : x
  2. Step 2: Convert to fraction form
    127,674.48/176,211.78 = 97,402.68/x
  3. Step 3: Cross multiply
    127,674.48x = 176,211.78 × 97,402.68
  4. Step 4: Simplify right side
    127,674.48x = 17,163,499,619.57
  5. Step 5: Solve for x
    x = 17,163,499,619.57/127,674.48
  6. Step 6: Final answer
    x = 134,431.72

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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.