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Finding the Fourth Proportional to 103,587.84, 142,962.32 and 60,580.49

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Solution

The fourth proportional to 103,587.84, 142,962.32 and 60,580.49 is: 83,607.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,587.84 : 142,962.32 = 60,580.49 : x
  2. Step 2: Convert to fraction form
    103,587.84/142,962.32 = 60,580.49/x
  3. Step 3: Cross multiply
    103,587.84x = 142,962.32 × 60,580.49
  4. Step 4: Simplify right side
    103,587.84x = 8,660,726,379.42
  5. Step 5: Solve for x
    x = 8,660,726,379.42/103,587.84
  6. Step 6: Final answer
    x = 83,607.56

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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.