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Finding the Fourth Proportional to 209,272.80, 314,686.80 and 175,058.40

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Solution

The fourth proportional to 209,272.80, 314,686.80 and 175,058.40 is: 263,238.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,272.80 : 314,686.80 = 175,058.40 : x
  2. Step 2: Convert to fraction form
    209,272.80/314,686.80 = 175,058.40/x
  3. Step 3: Cross multiply
    209,272.80x = 314,686.80 × 175,058.40
  4. Step 4: Simplify right side
    209,272.80x = 55,088,567,709.12
  5. Step 5: Solve for x
    x = 55,088,567,709.12/209,272.80
  6. Step 6: Final answer
    x = 263,238.07

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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.