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Finding the Fourth Proportional to 102,040.60, 153,060.90 and 101,056.45

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Solution

The fourth proportional to 102,040.60, 153,060.90 and 101,056.45 is: 151,584.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,040.60 : 153,060.90 = 101,056.45 : x
  2. Step 2: Convert to fraction form
    102,040.60/153,060.90 = 101,056.45/x
  3. Step 3: Cross multiply
    102,040.60x = 153,060.90 × 101,056.45
  4. Step 4: Simplify right side
    102,040.60x = 15,467,791,187.81
  5. Step 5: Solve for x
    x = 15,467,791,187.81/102,040.60
  6. Step 6: Final answer
    x = 151,584.68

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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.