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Finding the Fourth Proportional to 179,963.60, 248,346.66 and 99,392.10

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Solution

The fourth proportional to 179,963.60, 248,346.66 and 99,392.10 is: 137,159.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,963.60 : 248,346.66 = 99,392.10 : x
  2. Step 2: Convert to fraction form
    179,963.60/248,346.66 = 99,392.10/x
  3. Step 3: Cross multiply
    179,963.60x = 248,346.66 × 99,392.10
  4. Step 4: Simplify right side
    179,963.60x = 24,683,696,065.39
  5. Step 5: Solve for x
    x = 24,683,696,065.39/179,963.60
  6. Step 6: Final answer
    x = 137,159.38

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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.