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Finding the Fourth Proportional to 101,384.52, 139,908.66 and 56,064.12

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Solution

The fourth proportional to 101,384.52, 139,908.66 and 56,064.12 is: 77,367.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,384.52 : 139,908.66 = 56,064.12 : x
  2. Step 2: Convert to fraction form
    101,384.52/139,908.66 = 56,064.12/x
  3. Step 3: Cross multiply
    101,384.52x = 139,908.66 × 56,064.12
  4. Step 4: Simplify right side
    101,384.52x = 7,843,855,903.28
  5. Step 5: Solve for x
    x = 7,843,855,903.28/101,384.52
  6. Step 6: Final answer
    x = 77,367.39

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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.