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Finding the Fourth Proportional to 99,153.46, 136,833.42 and 53,831.44

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Solution

The fourth proportional to 99,153.46, 136,833.42 and 53,831.44 is: 74,288.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,153.46 : 136,833.42 = 53,831.44 : x
  2. Step 2: Convert to fraction form
    99,153.46/136,833.42 = 53,831.44/x
  3. Step 3: Cross multiply
    99,153.46x = 136,833.42 × 53,831.44
  4. Step 4: Simplify right side
    99,153.46x = 7,365,940,038.72
  5. Step 5: Solve for x
    x = 7,365,940,038.72/99,153.46
  6. Step 6: Final answer
    x = 74,288.28

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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.