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Finding the Fourth Proportional to 98,657.92, 137,060.40 and 97,735.60

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Solution

The fourth proportional to 98,657.92, 137,060.40 and 97,735.60 is: 135,779.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,657.92 : 137,060.40 = 97,735.60 : x
  2. Step 2: Convert to fraction form
    98,657.92/137,060.40 = 97,735.60/x
  3. Step 3: Cross multiply
    98,657.92x = 137,060.40 × 97,735.60
  4. Step 4: Simplify right side
    98,657.92x = 13,395,680,430.24
  5. Step 5: Solve for x
    x = 13,395,680,430.24/98,657.92
  6. Step 6: Final answer
    x = 135,779.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.