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Finding the Fourth Proportional to 88,643.60, 133,051.80 and 44,320.40

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Solution

The fourth proportional to 88,643.60, 133,051.80 and 44,320.40 is: 66,523.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,643.60 : 133,051.80 = 44,320.40 : x
  2. Step 2: Convert to fraction form
    88,643.60/133,051.80 = 44,320.40/x
  3. Step 3: Cross multiply
    88,643.60x = 133,051.80 × 44,320.40
  4. Step 4: Simplify right side
    88,643.60x = 5,896,908,996.72
  5. Step 5: Solve for x
    x = 5,896,908,996.72/88,643.60
  6. Step 6: Final answer
    x = 66,523.80

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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.