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Finding the Fourth Proportional to 114,957.56, 158,639.90 and 64,656.56

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Solution

The fourth proportional to 114,957.56, 158,639.90 and 64,656.56 is: 89,225.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,957.56 : 158,639.90 = 64,656.56 : x
  2. Step 2: Convert to fraction form
    114,957.56/158,639.90 = 64,656.56/x
  3. Step 3: Cross multiply
    114,957.56x = 158,639.90 × 64,656.56
  4. Step 4: Simplify right side
    114,957.56x = 10,257,110,212.74
  5. Step 5: Solve for x
    x = 10,257,110,212.74/114,957.56
  6. Step 6: Final answer
    x = 89,225.19

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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.