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Finding the Fourth Proportional to 58,068.48, 87,134.72 and 34,739.20

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Solution

The fourth proportional to 58,068.48, 87,134.72 and 34,739.20 is: 52,127.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,068.48 : 87,134.72 = 34,739.20 : x
  2. Step 2: Convert to fraction form
    58,068.48/87,134.72 = 34,739.20/x
  3. Step 3: Cross multiply
    58,068.48x = 87,134.72 × 34,739.20
  4. Step 4: Simplify right side
    58,068.48x = 3,026,990,465.02
  5. Step 5: Solve for x
    x = 3,026,990,465.02/58,068.48
  6. Step 6: Final answer
    x = 52,127.94

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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.