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Finding the Fourth Proportional to 98,998.39, 148,485.52 and 28,877.77

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Solution

The fourth proportional to 98,998.39, 148,485.52 and 28,877.77 is: 43,313.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,998.39 : 148,485.52 = 28,877.77 : x
  2. Step 2: Convert to fraction form
    98,998.39/148,485.52 = 28,877.77/x
  3. Step 3: Cross multiply
    98,998.39x = 148,485.52 × 28,877.77
  4. Step 4: Simplify right side
    98,998.39x = 4,287,930,694.89
  5. Step 5: Solve for x
    x = 4,287,930,694.89/98,998.39
  6. Step 6: Final answer
    x = 43,313.14

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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.