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Finding the Fourth Proportional to 101,142.55, 139,547.95 and 60,836.14

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Solution

The fourth proportional to 101,142.55, 139,547.95 and 60,836.14 is: 83,936.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,142.55 : 139,547.95 = 60,836.14 : x
  2. Step 2: Convert to fraction form
    101,142.55/139,547.95 = 60,836.14/x
  3. Step 3: Cross multiply
    101,142.55x = 139,547.95 × 60,836.14
  4. Step 4: Simplify right side
    101,142.55x = 8,489,558,622.91
  5. Step 5: Solve for x
    x = 8,489,558,622.91/101,142.55
  6. Step 6: Final answer
    x = 83,936.57

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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.