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Finding the Fourth Proportional to 98,617.80, 147,999.60 and 65,326.80

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Solution

The fourth proportional to 98,617.80, 147,999.60 and 65,326.80 is: 98,038.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,617.80 : 147,999.60 = 65,326.80 : x
  2. Step 2: Convert to fraction form
    98,617.80/147,999.60 = 65,326.80/x
  3. Step 3: Cross multiply
    98,617.80x = 147,999.60 × 65,326.80
  4. Step 4: Simplify right side
    98,617.80x = 9,668,340,269.28
  5. Step 5: Solve for x
    x = 9,668,340,269.28/98,617.80
  6. Step 6: Final answer
    x = 98,038.49

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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.