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Finding the Fourth Proportional to 83,688.66, 115,483.50 and 45,962.88

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Solution

The fourth proportional to 83,688.66, 115,483.50 and 45,962.88 is: 63,425.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,688.66 : 115,483.50 = 45,962.88 : x
  2. Step 2: Convert to fraction form
    83,688.66/115,483.50 = 45,962.88/x
  3. Step 3: Cross multiply
    83,688.66x = 115,483.50 × 45,962.88
  4. Step 4: Simplify right side
    83,688.66x = 5,307,954,252.48
  5. Step 5: Solve for x
    x = 5,307,954,252.48/83,688.66
  6. Step 6: Final answer
    x = 63,425.01

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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.