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Finding the Fourth Proportional to 122,598.64, 169,280.60 and 98,831.41

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Solution

The fourth proportional to 122,598.64, 169,280.60 and 98,831.41 is: 136,463.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,598.64 : 169,280.60 = 98,831.41 : x
  2. Step 2: Convert to fraction form
    122,598.64/169,280.60 = 98,831.41/x
  3. Step 3: Cross multiply
    122,598.64x = 169,280.60 × 98,831.41
  4. Step 4: Simplify right side
    122,598.64x = 16,730,240,383.65
  5. Step 5: Solve for x
    x = 16,730,240,383.65/122,598.64
  6. Step 6: Final answer
    x = 136,463.51

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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.