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Finding the Fourth Proportional to 114,740.60, 158,336.88 and 63,756.90

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Solution

The fourth proportional to 114,740.60, 158,336.88 and 63,756.90 is: 87,981.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,740.60 : 158,336.88 = 63,756.90 : x
  2. Step 2: Convert to fraction form
    114,740.60/158,336.88 = 63,756.90/x
  3. Step 3: Cross multiply
    114,740.60x = 158,336.88 × 63,756.90
  4. Step 4: Simplify right side
    114,740.60x = 10,095,068,624.47
  5. Step 5: Solve for x
    x = 10,095,068,624.47/114,740.60
  6. Step 6: Final answer
    x = 87,981.66

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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.