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Finding the Fourth Proportional to 245,913.61, 368,671.51 and 103,667.04

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Solution

The fourth proportional to 245,913.61, 368,671.51 and 103,667.04 is: 155,416.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,913.61 : 368,671.51 = 103,667.04 : x
  2. Step 2: Convert to fraction form
    245,913.61/368,671.51 = 103,667.04/x
  3. Step 3: Cross multiply
    245,913.61x = 368,671.51 × 103,667.04
  4. Step 4: Simplify right side
    245,913.61x = 38,219,084,174.03
  5. Step 5: Solve for x
    x = 38,219,084,174.03/245,913.61
  6. Step 6: Final answer
    x = 155,416.71

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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.