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Finding the Fourth Proportional to 341,665.71, 512,547.57 and 105,028.26

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Solution

The fourth proportional to 341,665.71, 512,547.57 and 105,028.26 is: 157,557.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,665.71 : 512,547.57 = 105,028.26 : x
  2. Step 2: Convert to fraction form
    341,665.71/512,547.57 = 105,028.26/x
  3. Step 3: Cross multiply
    341,665.71x = 512,547.57 × 105,028.26
  4. Step 4: Simplify right side
    341,665.71x = 53,831,979,444.33
  5. Step 5: Solve for x
    x = 53,831,979,444.33/341,665.71
  6. Step 6: Final answer
    x = 157,557.45

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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.