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Finding the Fourth Proportional to 101,230.35, 139,691.75 and 60,957.15

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Solution

The fourth proportional to 101,230.35, 139,691.75 and 60,957.15 is: 84,117.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,230.35 : 139,691.75 = 60,957.15 : x
  2. Step 2: Convert to fraction form
    101,230.35/139,691.75 = 60,957.15/x
  3. Step 3: Cross multiply
    101,230.35x = 139,691.75 × 60,957.15
  4. Step 4: Simplify right side
    101,230.35x = 8,515,210,958.51
  5. Step 5: Solve for x
    x = 8,515,210,958.51/101,230.35
  6. Step 6: Final answer
    x = 84,117.17

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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.