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Finding the Fourth Proportional to 101,325.84, 139,829.49 and 56,003.34

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Solution

The fourth proportional to 101,325.84, 139,829.49 and 56,003.34 is: 77,284.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,325.84 : 139,829.49 = 56,003.34 : x
  2. Step 2: Convert to fraction form
    101,325.84/139,829.49 = 56,003.34/x
  3. Step 3: Cross multiply
    101,325.84x = 139,829.49 × 56,003.34
  4. Step 4: Simplify right side
    101,325.84x = 7,830,918,011.68
  5. Step 5: Solve for x
    x = 7,830,918,011.68/101,325.84
  6. Step 6: Final answer
    x = 77,284.51

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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.