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Finding the Fourth Proportional to 125,953.48, 173,831.70 and 72,237.34

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Solution

The fourth proportional to 125,953.48, 173,831.70 and 72,237.34 is: 99,696.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,953.48 : 173,831.70 = 72,237.34 : x
  2. Step 2: Convert to fraction form
    125,953.48/173,831.70 = 72,237.34/x
  3. Step 3: Cross multiply
    125,953.48x = 173,831.70 × 72,237.34
  4. Step 4: Simplify right side
    125,953.48x = 12,557,139,983.26
  5. Step 5: Solve for x
    x = 12,557,139,983.26/125,953.48
  6. Step 6: Final answer
    x = 99,696.65

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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.