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Finding the Fourth Proportional to 239,157.89, 358,736.84 and 208,364.93

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Solution

The fourth proportional to 239,157.89, 358,736.84 and 208,364.93 is: 312,547.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,157.89 : 358,736.84 = 208,364.93 : x
  2. Step 2: Convert to fraction form
    239,157.89/358,736.84 = 208,364.93/x
  3. Step 3: Cross multiply
    239,157.89x = 358,736.84 × 208,364.93
  4. Step 4: Simplify right side
    239,157.89x = 74,748,175,513.20
  5. Step 5: Solve for x
    x = 74,748,175,513.20/239,157.89
  6. Step 6: Final answer
    x = 312,547.40

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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.