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Finding the Fourth Proportional to 292,464.66, 438,725.88 and 121,651.32

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Solution

The fourth proportional to 292,464.66, 438,725.88 and 121,651.32 is: 182,489.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,464.66 : 438,725.88 = 121,651.32 : x
  2. Step 2: Convert to fraction form
    292,464.66/438,725.88 = 121,651.32/x
  3. Step 3: Cross multiply
    292,464.66x = 438,725.88 × 121,651.32
  4. Step 4: Simplify right side
    292,464.66x = 53,371,582,420.16
  5. Step 5: Solve for x
    x = 53,371,582,420.16/292,464.66
  6. Step 6: Final answer
    x = 182,489.00

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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.