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Finding the Fourth Proportional to 127,670.40, 176,216.20 and 73,946.76

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Solution

The fourth proportional to 127,670.40, 176,216.20 and 73,946.76 is: 102,064.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,670.40 : 176,216.20 = 73,946.76 : x
  2. Step 2: Convert to fraction form
    127,670.40/176,216.20 = 73,946.76/x
  3. Step 3: Cross multiply
    127,670.40x = 176,216.20 × 73,946.76
  4. Step 4: Simplify right side
    127,670.40x = 13,030,617,049.51
  5. Step 5: Solve for x
    x = 13,030,617,049.51/127,670.40
  6. Step 6: Final answer
    x = 102,064.51

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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.