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Finding the Fourth Proportional to 111,699.96, 154,145.84 and 60,712.64

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Solution

The fourth proportional to 111,699.96, 154,145.84 and 60,712.64 is: 83,783.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,699.96 : 154,145.84 = 60,712.64 : x
  2. Step 2: Convert to fraction form
    111,699.96/154,145.84 = 60,712.64/x
  3. Step 3: Cross multiply
    111,699.96x = 154,145.84 × 60,712.64
  4. Step 4: Simplify right side
    111,699.96x = 9,358,600,395.17
  5. Step 5: Solve for x
    x = 9,358,600,395.17/111,699.96
  6. Step 6: Final answer
    x = 83,783.38

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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.