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Finding the Fourth Proportional to 83,175.44, 114,802.72 and 47,386.72

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Solution

The fourth proportional to 83,175.44, 114,802.72 and 47,386.72 is: 65,405.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,175.44 : 114,802.72 = 47,386.72 : x
  2. Step 2: Convert to fraction form
    83,175.44/114,802.72 = 47,386.72/x
  3. Step 3: Cross multiply
    83,175.44x = 114,802.72 × 47,386.72
  4. Step 4: Simplify right side
    83,175.44x = 5,440,124,347.88
  5. Step 5: Solve for x
    x = 5,440,124,347.88/83,175.44
  6. Step 6: Final answer
    x = 65,405.42

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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.