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Finding the Fourth Proportional to 153,486.12, 230,260.32 and 64,739.92

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Solution

The fourth proportional to 153,486.12, 230,260.32 and 64,739.92 is: 97,123.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,486.12 : 230,260.32 = 64,739.92 : x
  2. Step 2: Convert to fraction form
    153,486.12/230,260.32 = 64,739.92/x
  3. Step 3: Cross multiply
    153,486.12x = 230,260.32 × 64,739.92
  4. Step 4: Simplify right side
    153,486.12x = 14,907,034,695.97
  5. Step 5: Solve for x
    x = 14,907,034,695.97/153,486.12
  6. Step 6: Final answer
    x = 97,123.01

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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.