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Finding the Fourth Proportional to 111,688.59, 154,131.45 and 60,701.32

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Solution

The fourth proportional to 111,688.59, 154,131.45 and 60,701.32 is: 83,768.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,688.59 : 154,131.45 = 60,701.32 : x
  2. Step 2: Convert to fraction form
    111,688.59/154,131.45 = 60,701.32/x
  3. Step 3: Cross multiply
    111,688.59x = 154,131.45 × 60,701.32
  4. Step 4: Simplify right side
    111,688.59x = 9,355,982,468.51
  5. Step 5: Solve for x
    x = 9,355,982,468.51/111,688.59
  6. Step 6: Final answer
    x = 83,768.47

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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.