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Finding the Fourth Proportional to 98,410.96, 135,810.12 and 55,975.60

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Solution

The fourth proportional to 98,410.96, 135,810.12 and 55,975.60 is: 77,248.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,410.96 : 135,810.12 = 55,975.60 : x
  2. Step 2: Convert to fraction form
    98,410.96/135,810.12 = 55,975.60/x
  3. Step 3: Cross multiply
    98,410.96x = 135,810.12 × 55,975.60
  4. Step 4: Simplify right side
    98,410.96x = 7,602,052,953.07
  5. Step 5: Solve for x
    x = 7,602,052,953.07/98,410.96
  6. Step 6: Final answer
    x = 77,248.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.