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Finding the Fourth Proportional to 105,173.76, 157,779.84 and 35,046.40

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Solution

The fourth proportional to 105,173.76, 157,779.84 and 35,046.40 is: 52,576.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,173.76 : 157,779.84 = 35,046.40 : x
  2. Step 2: Convert to fraction form
    105,173.76/157,779.84 = 35,046.40/x
  3. Step 3: Cross multiply
    105,173.76x = 157,779.84 × 35,046.40
  4. Step 4: Simplify right side
    105,173.76x = 5,529,615,384.58
  5. Step 5: Solve for x
    x = 5,529,615,384.58/105,173.76
  6. Step 6: Final answer
    x = 52,576.00

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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.