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Finding the Fourth Proportional to 98,925.80, 147,999.90 and 89,594.60

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Solution

The fourth proportional to 98,925.80, 147,999.90 and 89,594.60 is: 134,039.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,925.80 : 147,999.90 = 89,594.60 : x
  2. Step 2: Convert to fraction form
    98,925.80/147,999.90 = 89,594.60/x
  3. Step 3: Cross multiply
    98,925.80x = 147,999.90 × 89,594.60
  4. Step 4: Simplify right side
    98,925.80x = 13,259,991,840.54
  5. Step 5: Solve for x
    x = 13,259,991,840.54/98,925.80
  6. Step 6: Final answer
    x = 134,039.77

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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.