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Finding the Fourth Proportional to 130,273, 179,776.74 and 73,683.16

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Solution

The fourth proportional to 130,273, 179,776.74 and 73,683.16 is: 101,682.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,273 : 179,776.74 = 73,683.16 : x
  2. Step 2: Convert to fraction form
    130,273/179,776.74 = 73,683.16/x
  3. Step 3: Cross multiply
    130,273x = 179,776.74 × 73,683.16
  4. Step 4: Simplify right side
    130,273x = 13,246,518,297.70
  5. Step 5: Solve for x
    x = 13,246,518,297.70/130,273
  6. Step 6: Final answer
    x = 101,682.76

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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.