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Finding the Fourth Proportional to 239,157.77, 358,736.65 and 208,364.81

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Solution

The fourth proportional to 239,157.77, 358,736.65 and 208,364.81 is: 312,547.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,157.77 : 358,736.65 = 208,364.81 : x
  2. Step 2: Convert to fraction form
    239,157.77/358,736.65 = 208,364.81/x
  3. Step 3: Cross multiply
    239,157.77x = 358,736.65 × 208,364.81
  4. Step 4: Simplify right side
    239,157.77x = 74,748,091,602.69
  5. Step 5: Solve for x
    x = 74,748,091,602.69/239,157.77
  6. Step 6: Final answer
    x = 312,547.21

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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.