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Finding the Fourth Proportional to 111,176.98, 153,448.06 and 70,881.46

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Solution

The fourth proportional to 111,176.98, 153,448.06 and 70,881.46 is: 97,831.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,176.98 : 153,448.06 = 70,881.46 : x
  2. Step 2: Convert to fraction form
    111,176.98/153,448.06 = 70,881.46/x
  3. Step 3: Cross multiply
    111,176.98x = 153,448.06 × 70,881.46
  4. Step 4: Simplify right side
    111,176.98x = 10,876,622,526.97
  5. Step 5: Solve for x
    x = 10,876,622,526.97/111,176.98
  6. Step 6: Final answer
    x = 97,831.61

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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.