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Finding the Fourth Proportional to 58,798.80, 88,140.60 and 30,733.20

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Solution

The fourth proportional to 58,798.80, 88,140.60 and 30,733.20 is: 46,069.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,798.80 : 88,140.60 = 30,733.20 : x
  2. Step 2: Convert to fraction form
    58,798.80/88,140.60 = 30,733.20/x
  3. Step 3: Cross multiply
    58,798.80x = 88,140.60 × 30,733.20
  4. Step 4: Simplify right side
    58,798.80x = 2,708,842,687.92
  5. Step 5: Solve for x
    x = 2,708,842,687.92/58,798.80
  6. Step 6: Final answer
    x = 46,069.69

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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.