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Finding the Fourth Proportional to 177,831.70, 266,661.15 and 98,862.10

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Solution

The fourth proportional to 177,831.70, 266,661.15 and 98,862.10 is: 148,245.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,831.70 : 266,661.15 = 98,862.10 : x
  2. Step 2: Convert to fraction form
    177,831.70/266,661.15 = 98,862.10/x
  3. Step 3: Cross multiply
    177,831.70x = 266,661.15 × 98,862.10
  4. Step 4: Simplify right side
    177,831.70x = 26,362,681,277.42
  5. Step 5: Solve for x
    x = 26,362,681,277.42/177,831.70
  6. Step 6: Final answer
    x = 148,245.12

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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.