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Finding the Fourth Proportional to 124,463.34, 171,752.64 and 70,740.90

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Solution

The fourth proportional to 124,463.34, 171,752.64 and 70,740.90 is: 97,618.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,463.34 : 171,752.64 = 70,740.90 : x
  2. Step 2: Convert to fraction form
    124,463.34/171,752.64 = 70,740.90/x
  3. Step 3: Cross multiply
    124,463.34x = 171,752.64 × 70,740.90
  4. Step 4: Simplify right side
    124,463.34x = 12,149,936,330.98
  5. Step 5: Solve for x
    x = 12,149,936,330.98/124,463.34
  6. Step 6: Final answer
    x = 97,618.59

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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.