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Finding the Fourth Proportional to 228,705.42, 343,055.61 and 88,365.66

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Solution

The fourth proportional to 228,705.42, 343,055.61 and 88,365.66 is: 132,547.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,705.42 : 343,055.61 = 88,365.66 : x
  2. Step 2: Convert to fraction form
    228,705.42/343,055.61 = 88,365.66/x
  3. Step 3: Cross multiply
    228,705.42x = 343,055.61 × 88,365.66
  4. Step 4: Simplify right side
    228,705.42x = 30,314,335,394.35
  5. Step 5: Solve for x
    x = 30,314,335,394.35/228,705.42
  6. Step 6: Final answer
    x = 132,547.52

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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.