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Finding the Fourth Proportional to 294,897.60, 442,268.16 and 84,479.04

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Solution

The fourth proportional to 294,897.60, 442,268.16 and 84,479.04 is: 126,696.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    294,897.60 : 442,268.16 = 84,479.04 : x
  2. Step 2: Convert to fraction form
    294,897.60/442,268.16 = 84,479.04/x
  3. Step 3: Cross multiply
    294,897.60x = 442,268.16 × 84,479.04
  4. Step 4: Simplify right side
    294,897.60x = 37,362,389,579.37
  5. Step 5: Solve for x
    x = 37,362,389,579.37/294,897.60
  6. Step 6: Final answer
    x = 126,696.15

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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.