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Finding the Fourth Proportional to 147,248.10, 220,544.10 and 121,004.10

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Solution

The fourth proportional to 147,248.10, 220,544.10 and 121,004.10 is: 181,236.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,248.10 : 220,544.10 = 121,004.10 : x
  2. Step 2: Convert to fraction form
    147,248.10/220,544.10 = 121,004.10/x
  3. Step 3: Cross multiply
    147,248.10x = 220,544.10 × 121,004.10
  4. Step 4: Simplify right side
    147,248.10x = 26,686,740,330.81
  5. Step 5: Solve for x
    x = 26,686,740,330.81/147,248.10
  6. Step 6: Final answer
    x = 181,236.57

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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.