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Finding the Fourth Proportional to 241,419.66, 333,007.56 and 155,490

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Solution

The fourth proportional to 241,419.66, 333,007.56 and 155,490 is: 214,478.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    241,419.66 : 333,007.56 = 155,490 : x
  2. Step 2: Convert to fraction form
    241,419.66/333,007.56 = 155,490/x
  3. Step 3: Cross multiply
    241,419.66x = 333,007.56 × 155,490
  4. Step 4: Simplify right side
    241,419.66x = 51,779,345,504.40
  5. Step 5: Solve for x
    x = 51,779,345,504.40/241,419.66
  6. Step 6: Final answer
    x = 214,478.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.