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Finding the Fourth Proportional to 58,821.32, 88,182.70 and 40,999.70

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Solution

The fourth proportional to 58,821.32, 88,182.70 and 40,999.70 is: 61,465.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,821.32 : 88,182.70 = 40,999.70 : x
  2. Step 2: Convert to fraction form
    58,821.32/88,182.70 = 40,999.70/x
  3. Step 3: Cross multiply
    58,821.32x = 88,182.70 × 40,999.70
  4. Step 4: Simplify right side
    58,821.32x = 3,615,464,363.15
  5. Step 5: Solve for x
    x = 3,615,464,363.15/58,821.32
  6. Step 6: Final answer
    x = 61,465.20

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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.