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Finding the Fourth Proportional to 295,349.10, 442,980.45 and 84,965.10

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Solution

The fourth proportional to 295,349.10, 442,980.45 and 84,965.10 is: 127,435.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,349.10 : 442,980.45 = 84,965.10 : x
  2. Step 2: Convert to fraction form
    295,349.10/442,980.45 = 84,965.10/x
  3. Step 3: Cross multiply
    295,349.10x = 442,980.45 × 84,965.10
  4. Step 4: Simplify right side
    295,349.10x = 37,637,878,232.30
  5. Step 5: Solve for x
    x = 37,637,878,232.30/295,349.10
  6. Step 6: Final answer
    x = 127,435.22

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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.