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Finding the Fourth Proportional to 102,350.68, 153,460.44 and 70,672

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Solution

The fourth proportional to 102,350.68, 153,460.44 and 70,672 is: 105,962.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,350.68 : 153,460.44 = 70,672 : x
  2. Step 2: Convert to fraction form
    102,350.68/153,460.44 = 70,672/x
  3. Step 3: Cross multiply
    102,350.68x = 153,460.44 × 70,672
  4. Step 4: Simplify right side
    102,350.68x = 10,845,356,215.68
  5. Step 5: Solve for x
    x = 10,845,356,215.68/102,350.68
  6. Step 6: Final answer
    x = 105,962.72

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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.