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Finding the Fourth Proportional to 88,818.40, 133,054.80 and 53,653.60

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Solution

The fourth proportional to 88,818.40, 133,054.80 and 53,653.60 is: 80,376.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,818.40 : 133,054.80 = 53,653.60 : x
  2. Step 2: Convert to fraction form
    88,818.40/133,054.80 = 53,653.60/x
  3. Step 3: Cross multiply
    88,818.40x = 133,054.80 × 53,653.60
  4. Step 4: Simplify right side
    88,818.40x = 7,138,869,017.28
  5. Step 5: Solve for x
    x = 7,138,869,017.28/88,818.40
  6. Step 6: Final answer
    x = 80,376.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.