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Finding the Fourth Proportional to 295,301.80, 442,866.30 and 105,740.20

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Solution

The fourth proportional to 295,301.80, 442,866.30 and 105,740.20 is: 158,579.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,301.80 : 442,866.30 = 105,740.20 : x
  2. Step 2: Convert to fraction form
    295,301.80/442,866.30 = 105,740.20/x
  3. Step 3: Cross multiply
    295,301.80x = 442,866.30 × 105,740.20
  4. Step 4: Simplify right side
    295,301.80x = 46,828,771,135.26
  5. Step 5: Solve for x
    x = 46,828,771,135.26/295,301.80
  6. Step 6: Final answer
    x = 158,579.36

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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.