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Finding the Fourth Proportional to 88,718.40, 133,077.60 and 55,648.80

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Solution

The fourth proportional to 88,718.40, 133,077.60 and 55,648.80 is: 83,473.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,718.40 : 133,077.60 = 55,648.80 : x
  2. Step 2: Convert to fraction form
    88,718.40/133,077.60 = 55,648.80/x
  3. Step 3: Cross multiply
    88,718.40x = 133,077.60 × 55,648.80
  4. Step 4: Simplify right side
    88,718.40x = 7,405,608,746.88
  5. Step 5: Solve for x
    x = 7,405,608,746.88/88,718.40
  6. Step 6: Final answer
    x = 83,473.20

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1.5x scale

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.