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Finding the Fourth Proportional to 130,797.76, 180,555.72 and 88,413.70

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Solution

The fourth proportional to 130,797.76, 180,555.72 and 88,413.70 is: 122,047.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,797.76 : 180,555.72 = 88,413.70 : x
  2. Step 2: Convert to fraction form
    130,797.76/180,555.72 = 88,413.70/x
  3. Step 3: Cross multiply
    130,797.76x = 180,555.72 × 88,413.70
  4. Step 4: Simplify right side
    130,797.76x = 15,963,599,261.36
  5. Step 5: Solve for x
    x = 15,963,599,261.36/130,797.76
  6. Step 6: Final answer
    x = 122,047.96

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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.