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Finding the Fourth Proportional to 343,565.56, 515,383.62 and 118,925.64

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Solution

The fourth proportional to 343,565.56, 515,383.62 and 118,925.64 is: 178,400.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,565.56 : 515,383.62 = 118,925.64 : x
  2. Step 2: Convert to fraction form
    343,565.56/515,383.62 = 118,925.64/x
  3. Step 3: Cross multiply
    343,565.56x = 515,383.62 × 118,925.64
  4. Step 4: Simplify right side
    343,565.56x = 61,292,326,854.02
  5. Step 5: Solve for x
    x = 61,292,326,854.02/343,565.56
  6. Step 6: Final answer
    x = 178,400.67

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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.