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Finding the Fourth Proportional to 103,424.34, 142,725.51 and 58,712.34

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Solution

The fourth proportional to 103,424.34, 142,725.51 and 58,712.34 is: 81,022.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,424.34 : 142,725.51 = 58,712.34 : x
  2. Step 2: Convert to fraction form
    103,424.34/142,725.51 = 58,712.34/x
  3. Step 3: Cross multiply
    103,424.34x = 142,725.51 × 58,712.34
  4. Step 4: Simplify right side
    103,424.34x = 8,379,748,669.79
  5. Step 5: Solve for x
    x = 8,379,748,669.79/103,424.34
  6. Step 6: Final answer
    x = 81,022.98

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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.