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Finding the Fourth Proportional to 561,222.35, 841,831.09 and 140,497.01

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Solution

The fourth proportional to 561,222.35, 841,831.09 and 140,497.01 is: 210,744.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,222.35 : 841,831.09 = 140,497.01 : x
  2. Step 2: Convert to fraction form
    561,222.35/841,831.09 = 140,497.01/x
  3. Step 3: Cross multiply
    561,222.35x = 841,831.09 × 140,497.01
  4. Step 4: Simplify right side
    561,222.35x = 118,274,746,509.64
  5. Step 5: Solve for x
    x = 118,274,746,509.64/561,222.35
  6. Step 6: Final answer
    x = 210,744.90

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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.