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Finding the Fourth Proportional to 245,448.60, 368,173.80 and 74,671.98

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Solution

The fourth proportional to 245,448.60, 368,173.80 and 74,671.98 is: 112,008.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,448.60 : 368,173.80 = 74,671.98 : x
  2. Step 2: Convert to fraction form
    245,448.60/368,173.80 = 74,671.98/x
  3. Step 3: Cross multiply
    245,448.60x = 368,173.80 × 74,671.98
  4. Step 4: Simplify right side
    245,448.60x = 27,492,266,630.12
  5. Step 5: Solve for x
    x = 27,492,266,630.12/245,448.60
  6. Step 6: Final answer
    x = 112,008.24

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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.