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Finding the Fourth Proportional to 173,507.77, 239,425.10 and 100,911.33

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Solution

The fourth proportional to 173,507.77, 239,425.10 and 100,911.33 is: 139,248.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,507.77 : 239,425.10 = 100,911.33 : x
  2. Step 2: Convert to fraction form
    173,507.77/239,425.10 = 100,911.33/x
  3. Step 3: Cross multiply
    173,507.77x = 239,425.10 × 100,911.33
  4. Step 4: Simplify right side
    173,507.77x = 24,160,706,127.22
  5. Step 5: Solve for x
    x = 24,160,706,127.22/173,507.77
  6. Step 6: Final answer
    x = 139,248.55

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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.