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Finding the Fourth Proportional to 144,609.71, 216,831.33 and 55,851.53

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Solution

The fourth proportional to 144,609.71, 216,831.33 and 55,851.53 is: 83,745.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,609.71 : 216,831.33 = 55,851.53 : x
  2. Step 2: Convert to fraction form
    144,609.71/216,831.33 = 55,851.53/x
  3. Step 3: Cross multiply
    144,609.71x = 216,831.33 × 55,851.53
  4. Step 4: Simplify right side
    144,609.71x = 12,110,360,448.28
  5. Step 5: Solve for x
    x = 12,110,360,448.28/144,609.71
  6. Step 6: Final answer
    x = 83,745.14

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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.