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Finding the Fourth Proportional to 127,808.25, 176,354.63 and 74,082.76

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Solution

The fourth proportional to 127,808.25, 176,354.63 and 74,082.76 is: 102,222.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,808.25 : 176,354.63 = 74,082.76 : x
  2. Step 2: Convert to fraction form
    127,808.25/176,354.63 = 74,082.76/x
  3. Step 3: Cross multiply
    127,808.25x = 176,354.63 × 74,082.76
  4. Step 4: Simplify right side
    127,808.25x = 13,064,837,358.77
  5. Step 5: Solve for x
    x = 13,064,837,358.77/127,808.25
  6. Step 6: Final answer
    x = 102,222.18

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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.