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Finding the Fourth Proportional to 98,413.60, 147,620.40 and 97,538.80

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Solution

The fourth proportional to 98,413.60, 147,620.40 and 97,538.80 is: 146,308.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,413.60 : 147,620.40 = 97,538.80 : x
  2. Step 2: Convert to fraction form
    98,413.60/147,620.40 = 97,538.80/x
  3. Step 3: Cross multiply
    98,413.60x = 147,620.40 × 97,538.80
  4. Step 4: Simplify right side
    98,413.60x = 14,398,716,671.52
  5. Step 5: Solve for x
    x = 14,398,716,671.52/98,413.60
  6. Step 6: Final answer
    x = 146,308.20

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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.