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Finding the Fourth Proportional to 56,129.88, 77,384.79 and 46,533.54

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Solution

The fourth proportional to 56,129.88, 77,384.79 and 46,533.54 is: 64,154.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,129.88 : 77,384.79 = 46,533.54 : x
  2. Step 2: Convert to fraction form
    56,129.88/77,384.79 = 46,533.54/x
  3. Step 3: Cross multiply
    56,129.88x = 77,384.79 × 46,533.54
  4. Step 4: Simplify right side
    56,129.88x = 3,600,988,105.16
  5. Step 5: Solve for x
    x = 3,600,988,105.16/56,129.88
  6. Step 6: Final answer
    x = 64,154.57

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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.