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Finding the Fourth Proportional to 147,280.86, 220,858.39 and 56,036.48

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Solution

The fourth proportional to 147,280.86, 220,858.39 and 56,036.48 is: 84,030.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,280.86 : 220,858.39 = 56,036.48 : x
  2. Step 2: Convert to fraction form
    147,280.86/220,858.39 = 56,036.48/x
  3. Step 3: Cross multiply
    147,280.86x = 220,858.39 × 56,036.48
  4. Step 4: Simplify right side
    147,280.86x = 12,376,127,166.12
  5. Step 5: Solve for x
    x = 12,376,127,166.12/147,280.86
  6. Step 6: Final answer
    x = 84,030.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.